如何快速确定给定邮政编码的状态？
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【中文标题】如何快速确定给定邮政编码的状态？【英文标题】：How can I quickly determine the State for a given zipcode? 【发布时间】：2015-05-03 12:20:08 【问题描述】：我不需要城市或地址，只需要州。如果可能的话，我不想进行 API 调用。优先考虑的是轻量级解决方案，理想情况下只是 javascript。
我有一个用户输入 zipcode，我想根据邮政编码所在的州显示一段文本。我知道查找城市和州要复杂得多，为此，USPS 公开的 API 可能是最好的。但是为了匹配状态，也许只是前三个数字，解决方案（我认为）应该是简单和轻量级的。
最好是Javascript。 php 也可以工作。
【问题讨论】：
其中免费的有状态信息-unitedstateszipcodes.org/zip-code-database 您需要一个邮政编码及其各自状态的数据库。您可以从 USPS 获得一份。 这个问题的副本只有一个被赞成的答案，它是一个已删除问题的链接。 这被错误地标记为重复。 您也可以查看thezipcodes.com。 【参考方案1】：美国邮政编码数据实际上足够稳定，如果只需要州（不是城市或其他任何东西），您无需访问 API 或数据库就可以做到这一点.
这是一个轻量级 JS 解决方案，它采用邮政编码（作为字符串），确定正确的美国州，并将州作为其两个字母的邮政缩写返回。
function getState(zipString)
/* Ensure param is a string to prevent unpredictable parsing results */
if (typeof zipString !== 'string')
console.log('Must pass the zipcode as a string.');
return;
/* Ensure we have exactly 5 characters to parse */
if (zipString.length !== 5)
console.log('Must pass a 5-digit zipcode.');
return;
/* Ensure we don't parse strings starting with 0 as octal values */
const zipcode = parseInt(zipString, 10);
let st;
let state;
/* Code cases alphabetized by state */
if (zipcode >= 35000 && zipcode <= 36999)
st = 'AL';
state = 'Alabama';
else if (zipcode >= 99500 && zipcode <= 99999)
st = 'AK';
state = 'Alaska';
else if (zipcode >= 85000 && zipcode <= 86999)
st = 'AZ';
state = 'Arizona';
else if (zipcode >= 71600 && zipcode <= 72999)
st = 'AR';
state = 'Arkansas';
else if (zipcode >= 90000 && zipcode <= 96699)
st = 'CA';
state = 'California';
else if (zipcode >= 80000 && zipcode <= 81999)
st = 'CO';
state = 'Colorado';
else if ((zipcode >= 6000 && zipcode <= 6389) || (zipcode >= 6391 && zipcode <= 6999))
st = 'CT';
state = 'Connecticut';
else if (zipcode >= 19700 && zipcode <= 19999)
st = 'DE';
state = 'Delaware';
else if (zipcode >= 32000 && zipcode <= 34999)
st = 'FL';
state = 'Florida';
else if ( (zipcode >= 30000 && zipcode <= 31999) || (zipcode >= 39800 && zipcode <= 39999) )
st = 'GA';
state = 'Georgia';
else if (zipcode >= 96700 && zipcode <= 96999)
st = 'HI';
state = 'Hawaii';
else if (zipcode >= 83200 && zipcode <= 83999)
st = 'ID';
state = 'Idaho';
else if (zipcode >= 60000 && zipcode <= 62999)
st = 'IL';
state = 'Illinois';
else if (zipcode >= 46000 && zipcode <= 47999)
st = 'IN';
state = 'Indiana';
else if (zipcode >= 50000 && zipcode <= 52999)
st = 'IA';
state = 'Iowa';
else if (zipcode >= 66000 && zipcode <= 67999)
st = 'KS';
state = 'Kansas';
else if (zipcode >= 40000 && zipcode <= 42999)
st = 'KY';
state = 'Kentucky';
else if (zipcode >= 70000 && zipcode <= 71599)
st = 'LA';
state = 'Louisiana';
else if (zipcode >= 3900 && zipcode <= 4999)
st = 'ME';
state = 'Maine';
else if (zipcode >= 20600 && zipcode <= 21999)
st = 'MD';
state = 'Maryland';
else if ( (zipcode >= 1000 && zipcode <= 2799) || (zipcode == 5501) || (zipcode == 5544 ) )
st = 'MA';
state = 'Massachusetts';
else if (zipcode >= 48000 && zipcode <= 49999)
st = 'MI';
state = 'Michigan';
else if (zipcode >= 55000 && zipcode <= 56899)
st = 'MN';
state = 'Minnesota';
else if (zipcode >= 38600 && zipcode <= 39999)
st = 'MS';
state = 'Mississippi';
else if (zipcode >= 63000 && zipcode <= 65999)
st = 'MO';
state = 'Missouri';
else if (zipcode >= 59000 && zipcode <= 59999)
st = 'MT';
state = 'Montana';
else if (zipcode >= 27000 && zipcode <= 28999)
st = 'NC';
state = 'North Carolina';
else if (zipcode >= 58000 && zipcode <= 58999)
st = 'ND';
state = 'North Dakota';
else if (zipcode >= 68000 && zipcode <= 69999)
st = 'NE';
state = 'Nebraska';
else if (zipcode >= 88900 && zipcode <= 89999)
st = 'NV';
state = 'Nevada';
else if (zipcode >= 3000 && zipcode <= 3899)
st = 'NH';
state = 'New Hampshire';
else if (zipcode >= 7000 && zipcode <= 8999)
st = 'NJ';
state = 'New Jersey';
else if (zipcode >= 87000 && zipcode <= 88499)
st = 'NM';
state = 'New Mexico';
else if ( (zipcode >= 10000 && zipcode <= 14999) || (zipcode == 6390) || (zipcode == 501) || (zipcode == 544) )
st = 'NY';
state = 'New York';
else if (zipcode >= 43000 && zipcode <= 45999)
st = 'OH';
state = 'Ohio';
else if ((zipcode >= 73000 && zipcode <= 73199) || (zipcode >= 73400 && zipcode <= 74999) )
st = 'OK';
state = 'Oklahoma';
else if (zipcode >= 97000 && zipcode <= 97999)
st = 'OR';
state = 'Oregon';
else if (zipcode >= 15000 && zipcode <= 19699)
st = 'PA';
state = 'Pennsylvania';
else if (zipcode >= 300 && zipcode <= 999)
st = 'PR';
state = 'Puerto Rico';
else if (zipcode >= 2800 && zipcode <= 2999)
st = 'RI';
state = 'Rhode Island';
else if (zipcode >= 29000 && zipcode <= 29999)
st = 'SC';
state = 'South Carolina';
else if (zipcode >= 57000 && zipcode <= 57999)
st = 'SD';
state = 'South Dakota';
else if (zipcode >= 37000 && zipcode <= 38599)
st = 'TN';
state = 'Tennessee';
else if ( (zipcode >= 75000 && zipcode <= 79999) || (zipcode >= 73301 && zipcode <= 73399) || (zipcode >= 88500 && zipcode <= 88599) )
st = 'TX';
state = 'Texas';
else if (zipcode >= 84000 && zipcode <= 84999)
st = 'UT';
state = 'Utah';
else if (zipcode >= 5000 && zipcode <= 5999)
st = 'VT';
state = 'Vermont';
else if ( (zipcode >= 20100 && zipcode <= 20199) || (zipcode >= 22000 && zipcode <= 24699) || (zipcode == 20598) )
st = 'VA';
state = 'Virginia';
else if ( (zipcode >= 20000 && zipcode <= 20099) || (zipcode >= 20200 && zipcode <= 20599) || (zipcode >= 56900 && zipcode <= 56999) )
st = 'DC';
state = 'Washington DC';
else if (zipcode >= 98000 && zipcode <= 99499)
st = 'WA';
state = 'Washington';
else if (zipcode >= 24700 && zipcode <= 26999)
st = 'WV';
state = 'West Virginia';
else if (zipcode >= 53000 && zipcode <= 54999)
st = 'WI';
state = 'Wisconsin';
else if (zipcode >= 82000 && zipcode <= 83199)
st = 'WY';
state = 'Wyoming';
else
st = 'none';
state = 'none';
console.log('No state found matching', zipcode);
return st;
您可以通过在最后一行返回 state 而不是 st 来返回州的全名，而不仅仅是两个字母的缩写。
非常感谢 @kevin-boucher 和 @abaldwin99 帮助他们解析较小的新英格兰代码并避免可怕的八进制评估错误，他们的答案是 here。
同时感谢this useful page提供的大部分原始代码。
【讨论】：
【参考方案2】：zippopotam.us 有一个 REST API。 这是一个如何在纯 JavaScript（无库）中从 ZIP 中获取状态的示例：
var getStatebutton = document.getElementById('GetStateButton');
getStatebutton.onclick = function ()
var zipCode = document.getElementById('ZIPCode');
var zip = zipCode.value;
if (!zip) return;
var url = 'http://api.zippopotam.us/us/' + zip;
var xhr = new XMLHttpRequest();
xhr.onreadystatechange = function ()
if (xhr.readyState == 4)
var result = xhr.responseText;
var zippo = JSON.parse(result);
var resultDiv = document.getElementById('divResult');
resultDiv.innerhtml = zippo.places[0].state;
;
xhr.open('GET', url, true);
xhr.send(null);
;ZIP:
<input type='text' id='ZIPCode' value='90210' />
<button id="GetStateButton">Get State</button>
<p></p>State:
<div id='divResult'></div>如果您愿意，也可以在 jsfiddle 中。
【讨论】：
很好的答案，尽管我不希望将任何外部依赖项添加到应用程序中。这很精简，但仍然取决于 zippopotam.us。【参考方案3】：function getState(zipcode)
// Returns false on invalid zip-- else returns code:"XX" long:"XXXXXXXXX"
// Ensure param is a string to prevent unpredictable parsing results
if (typeof zipcode !== 'string')
console.log('Must pass the zipcode as a string. -- Otherwise leading zeros could cause your zip code to be parsed outside base 10.');
return;
// Ensure you don't parse codes that start with 0 as octal values
zipcode = parseInt(zipcode,10);
// Code blocks alphabetized by state
var states = [min: 35000, max:36999, code: 'AL', long: "Alabama",
min: 99500, max:99999, code: 'AK', long: "Alaska",
min: 85000, max:86999, code: 'AZ', long: "Arizona",
min: 71600, max:72999, code: 'AR', long: "Arkansas",
min: 90000, max:96699, code: 'CA', long: "California",
min: 80000, max:81999, code: 'CO', long: "Colorado",
min: 6000, max:6999, code: 'CT', long: "Connecticut",
min: 19700, max:19999, code: 'DE', long: "Deleware",
min: 32000, max:34999, code: 'FL', long: "Florida",
min: 30000, max:31999, code: 'GA', long: "Georgia",
min: 96700, max:96999, code: 'HI', long: "Hawaii",
min: 83200, max:83999, code: 'ID', long: "Idaho",
min: 60000, max:62999, code: 'IL', long: "Illinois",
min: 46000, max:47999, code: 'IN', long: "Indiana",
min: 50000, max:52999, code: 'IA', long: "Iowa",
min: 66000, max:67999, code: 'KS', long: "Kansas",
min: 40000, max:42999, code: 'KY', long: "Kentucky",
min: 70000, max:71599, code: 'LA', long: "Louisiana",
min: 3900, max:4999, code: 'ME', long: "Maine",
min: 20600, max:21999, code: 'MD', long: "Maryland",
min: 1000, max:2799, code: 'MA', long: "Massachusetts",
min: 48000, max:49999, code: 'MI', long: "Michigan",
min: 55000, max:56999, code: 'MN', long: "Minnesota",
min: 38600, max:39999, code: 'MS', long: "Mississippi",
min: 63000, max:65999, code: 'MO', long: "Missouri",
min: 59000, max:59999, code: 'MT', long: "Montana",
min: 27000, max:28999, code: 'NC', long: "North Carolina",
min: 58000, max:58999, code: 'ND', long: "North Dakota",
min: 68000, max:69999, code: 'NE', long: "Nebraska",
min: 88900, max:89999, code: 'NV', long: "Nevada",
min: 3000, max:3899, code: 'NH', long: "New Hampshire",
min: 7000, max:8999, code: 'NJ', long: "New Jersey",
min: 87000, max:88499, code: 'NM', long: "New Mexico",
min: 10000, max:14999, code: 'NY', long: "New York",
min: 43000, max:45999, code: 'OH', long: "Ohio",
min: 73000, max:74999, code: 'OK', long: "Oklahoma",
min: 97000, max:97999, code: 'OR', long: "Oregon",
min: 15000, max:19699, code: 'PA', long: "Pennsylvania",
min: 300, max:999, code: 'PR', long: "Puerto Rico",
min: 2800, max:2999, code: 'RI', long: "Rhode Island",
min: 29000, max:29999, code: 'SC', long: "South Carolina",
min: 57000, max:57999, code: 'SD', long: "South Dakota",
min: 37000, max:38599, code: 'TN', long: "Tennessee",
min: 75000, max:79999, code: 'TX', long: "Texas",
min: 88500, max:88599, code: 'TX', long: "Texas",
min: 84000, max:84999, code: 'UT', long: "Utah",
min: 5000, max:5999, code: 'VT', long: "Vermont",
min: 22000, max:24699, code: 'VA', long: "Virgina",
min: 20000, max:20599, code: 'DC', long: "Washington DC",
min: 98000, max:99499, code: 'WA', long: "Washington",
min: 24700, max:26999, code: 'WV', long: "West Virginia",
min: 53000, max:54999, code: 'WI', long: "Wisconsin",
min: 82000, max:83199, code: 'WY', long: "Wyoming"];
var state = states.filter(function(s)
return s.min <= zipcode && s.max >= zipcode;
);
if (state.length == 0)
return false;
else if (state.length > 1)
console.error("Whoops found two states");
return code:state[0].code, long:state[0].long;
【讨论】：
【参考方案4】：您可以使用范围数组返回给定邮政编码最可能的状态。
这不是一个验证器——并不是一个范围内的每个数字都被实际分配为邮政编码，将来可能会添加新的范围。
function stateFromZip(z)
z= parseInt(z, 10);// removes leading '0'
if(z<1001 || z>99950) return null;
var i= 69, next, s,
zs= [
[1001, 2791, 'Massachusetts'], [2801, 2940, 'Rhode Island'], [3031, 3897, 'New Hampshire'],
[3901, 4992, 'Maine'], [5001, 5495, 'Vermont'], [5501, 5544, 'Massachusetts'],
[5601, 5907, 'Vermont'], [6001, 6389, 'Connecticut'], [6390, 6390, 'New York'],
[6401, 6928, 'Connecticut'], [7001, 8989, 'New Jersey'], [10001, 14975, 'New York'],
[15001, 19640, 'Pennsylvania'], [19701, 19980, 'Delaware'], [20001, 20039, 'Dist. of Columbia'],
[20040, 20167, 'Virginia'], [20042, 20599, 'Dist. of Columbia'], [20331, 20331, 'Maryland'],
[20335, 20797, 'Maryland'], [20799, 20799, 'Dist. of Columbia'], [20812, 21930, 'Maryland'],
[22001, 24658, 'Virginia'], [24701, 26886, 'West Virginia'], [27006, 28909, 'North Carolina'],
[29001, 29948, 'South Carolina'], [30001, 31999, 'Georgia'], [32004, 34997, 'Florida'],
[35004, 36925, 'Alabama'], [37010, 38589, 'Tennessee'], [38601, 39776, 'Mississippi'],
[39901, 39901, 'Georgia'], [40003, 42788, 'Kentucky'], [43001, 45999, 'Ohio'],
[46001, 47997, 'Indiana'], [48001, 49971, 'Michigan'], [50001, 52809, 'Iowa'],
[53001, 54990, 'Wisconsin'], [55001, 56763, 'Minnesota'], [57001, 57799, 'South Dakota'],
[58001, 58856, 'North Dakota'], [59001, 59937, 'Montana'], [60001, 62999, 'Illinois'],
[63001, 65899, 'Missouri'], [66002, 67954, 'Kansas'], [68001, 68118, 'Nebraska'],
[68119, 68120, 'Iowa'], [68122, 69367, 'Nebraska'], [70001, 71232, 'Louisiana'],
[71233, 71233, 'Mississippi'], [71234, 71497, 'Louisiana'], [73001, 73199, 'Oklahoma'],
[73301, 73301, 'Texas'], [73401, 74966, 'Oklahoma'], [75001, 75501, 'Texas'],
[75502, 75502, 'Arkansas'], [75503, 79999, 'Texas'], [80001, 81658, 'Colorado'],
[82001, 83128, 'Wyoming'], [83201, 83876, 'Idaho'], [84001, 84784, 'Utah'],
[85001, 86556, 'Arizona'], [87001, 88441, 'New Mexico'], [88510, 88589, 'Texas'],
[88901, 89883, 'Nevada'], [90001, 96162, 'California'], [96701, 96898, 'Hawaii'],
[97001, 97920, 'Oregon'], [98001, 99403, 'Washington'], [99501, 99950, 'Alaska']
];
while(i)
next= zs[--i];
if(z>next[0] && z<next[1]) return next[2];
return null;
stateFromZip('49125')
/* 返回值：（字符串） 密歇根州 */
【讨论】：
【参考方案5】：我意识到 OP 最初要求的是 PHP 或 JS，但我最终来到了这里，所以其他人可能也会觉得这很有用。
这是具有更新邮政编码范围的 C# 版本（根据 42k 邮政编码的数据库构建）
public static string GetStateFromZip(int zipCode)
return zipCode switch
var zip when zip >= 600 && zip <= 999 => "Puerto Rico",
var zip when zip >= 1001 && zip <= 2791 => "Massachusetts",
var zip when zip >= 2801 && zip <= 2940 => "Rhode Island",
var zip when zip >= 3031 && zip <= 3897 => "New Hampshire",
var zip when zip >= 3901 && zip <= 4992 => "Maine",
var zip when zip >= 5001 && zip <= 5495 => "Vermont",
var zip when zip >= 5501 && zip <= 5544 => "Massachusetts",
var zip when zip >= 5601 && zip <= 5907 => "Vermont",
var zip when zip >= 6001 && zip <= 6389 => "Connecticut",
var zip when zip >= 6390 && zip <= 6390 => "New York",
var zip when zip >= 6401 && zip <= 6928 => "Connecticut",
var zip when zip >= 7001 && zip <= 8989 => "New Jersey",
var zip when zip >= 9000 && zip <= 9900 => "Military",
var zip when zip >= 10001 && zip <= 14975 => "New York",
var zip when zip >= 15001 && zip <= 19640 => "Pennsylvania",
var zip when zip >= 19701 && zip <= 19980 => "Delaware",
var zip when zip >= 20001 && zip <= 20039 => "Washington, D.C.",
var zip when zip >= 20040 && zip <= 20167 => "Virginia",
var zip when zip >= 20042 && zip <= 20599 => "Washington, D.C.",
var zip when zip >= 20331 && zip <= 20331 => "Maryland",
var zip when zip >= 20335 && zip <= 20797 => "Maryland",
var zip when zip >= 20799 && zip <= 20799 => "Washington, D.C.",
var zip when zip >= 20810 && zip <= 21930 => "Maryland",
var zip when zip >= 22001 && zip <= 24658 => "Virginia",
var zip when zip >= 24701 && zip <= 26886 => "West Virginia",
var zip when zip >= 27006 && zip <= 28909 => "North Carolina",
var zip when zip >= 29001 && zip <= 29948 => "South Carolina",
var zip when zip >= 30001 && zip <= 31999 => "Georgia",
var zip when zip >= 32000 && zip <= 34997 => "Florida",
var zip when zip >= 35004 && zip <= 36925 => "Alabama",
var zip when zip >= 37010 && zip <= 38589 => "Tennessee",
var zip when zip >= 38601 && zip <= 39776 => "Mississippi",
var zip when zip >= 39813 && zip <= 39897 => "Georgia",
var zip when zip >= 39901 && zip <= 39901 => "Georgia",
var zip when zip >= 40003 && zip <= 42788 => "Kentucky",
var zip when zip >= 43001 && zip <= 45999 => "Ohio",
var zip when zip >= 46001 && zip <= 47997 => "Indiana",
var zip when zip >= 48001 && zip <= 49971 => "Michigan",
var zip when zip >= 50001 && zip <= 52809 => "Iowa",
var zip when zip >= 53001 && zip <= 54990 => "Wisconsin",
var zip when zip >= 55001 && zip <= 56763 => "Minnesota",
var zip when zip >= 56901 && zip <= 56999 => "Washington, D.C.",
var zip when zip >= 57001 && zip <= 57799 => "South Dakota",
var zip when zip >= 58001 && zip <= 58856 => "North Dakota",
var zip when zip >= 59001 && zip <= 59937 => "Montana",
var zip when zip >= 60001 && zip <= 62999 => "Illinois",
var zip when zip >= 63001 && zip <= 65899 => "Missouri",
var zip when zip >= 66002 && zip <= 67954 => "Kansas",
var zip when zip >= 68001 && zip <= 68118 => "Nebraska",
var zip when zip >= 68119 && zip <= 68120 => "Iowa",
var zip when zip >= 68122 && zip <= 69367 => "Nebraska",
var zip when zip >= 70001 && zip <= 71232 => "Louisiana",
var zip when zip >= 71233 && zip <= 71233 => "Mississippi",
var zip when zip >= 71234 && zip <= 71497 => "Louisiana",
var zip when zip >= 71601 && zip <= 72959 => "Arkansas",
var zip when zip >= 73001 && zip <= 73199 => "Oklahoma",
var zip when zip >= 73301 && zip <= 73399 => "Texas",
var zip when zip >= 73401 && zip <= 74966 => "Oklahoma",
var zip when zip >= 75001 && zip <= 75501 => "Texas",
var zip when zip >= 75502 && zip <= 75502 => "Arkansas",
var zip when zip >= 75503 && zip <= 79999 => "Texas",
var zip when zip >= 80001 && zip <= 81658 => "Colorado",
var zip when zip >= 82001 && zip <= 83128 => "Wyoming",
var zip when zip >= 83201 && zip <= 83876 => "Idaho",
var zip when zip >= 84001 && zip <= 84790 => "Utah",
var zip when zip >= 85001 && zip <= 86556 => "Arizona",
var zip when zip >= 87001 && zip <= 88441 => "New Mexico",
var zip when zip >= 88510 && zip <= 88595 => "Texas",
var zip when zip >= 88901 && zip <= 89883 => "Nevada",
var zip when zip >= 90001 && zip <= 96162 => "California",
var zip when zip >= 96201 && zip <= 96698 => "Military",
var zip when zip >= 96701 && zip <= 96898 => "Hawaii",
var zip when zip >= 96910 && zip <= 96932 => "Guam",
var zip when zip >= 97001 && zip <= 97920 => "Oregon",
var zip when zip >= 98001 && zip <= 99403 => "Washington",
var zip when zip >= 99501 && zip <= 99950 => "Alaska",
_ => ""
;
【讨论】：
【参考方案6】：这是@Tony Brasunas 接受的答案的PHP 版本
<?php
function getState( $zipcode )
/* Ensure we have exactly 5 characters to parse */
if ( strlen( $zipcode ) !== 5)
return 'Must pass a 5-digit $zipcode.';
$st = '';
$state = '';
/* Code cases alphabetized by state */
if ($zipcode >= 35000 && $zipcode <= 36999)
$st = 'AL';
$state = 'Alabama';
else if ($zipcode >= 99500 && $zipcode <= 99999)
$st = 'AK';
$state = 'Alaska';
else if ($zipcode >= 85000 && $zipcode <= 86999)
$st = 'AZ';
$state = 'Arizona';
else if ($zipcode >= 71600 && $zipcode <= 72999)
$st = 'AR';
$state = 'Arkansas';
else if ($zipcode >= 90000 && $zipcode <= 96699)
$st = 'CA';
$state = 'California';
else if ($zipcode >= 80000 && $zipcode <= 81999)
$st = 'CO';
$state = 'Colorado';
else if (($zipcode >= 6000 && $zipcode <= 6389) || ($zipcode >= 6391 && $zipcode <= 6999))
$st = 'CT';
$state = 'Connecticut';
else if ($zipcode >= 19700 && $zipcode <= 19999)
$st = 'DE';
$state = 'Delaware';
else if ($zipcode >= 32000 && $zipcode <= 34999)
$st = 'FL';
$state = 'Florida';
else if ( ($zipcode >= 30000 && $zipcode <= 31999) || ($zipcode >= 39800 && $zipcode <= 39999) )
$st = 'GA';
$state = 'Georgia';
else if ($zipcode >= 96700 && $zipcode <= 96999)
$st = 'HI';
$state = 'Hawaii';
else if ($zipcode >= 83200 && $zipcode <= 83999)
$st = 'ID';
$state = 'Idaho';
else if ($zipcode >= 60000 && $zipcode <= 62999)
$st = 'IL';
$state = 'Illinois';
else if ($zipcode >= 46000 && $zipcode <= 47999)
$st = 'IN';
$state = 'Indiana';
else if ($zipcode >= 50000 && $zipcode <= 52999)
$st = 'IA';
$state = 'Iowa';
else if ($zipcode >= 66000 && $zipcode <= 67999)
$st = 'KS';
$state = 'Kansas';
else if ($zipcode >= 40000 && $zipcode <= 42999)
$st = 'KY';
$state = 'Kentucky';
else if ($zipcode >= 70000 && $zipcode <= 71599)
$st = 'LA';
$state = 'Louisiana';
else if ($zipcode >= 3900 && $zipcode <= 4999)
$st = 'ME';
$state = 'Maine';
else if ($zipcode >= 20600 && $zipcode <= 21999)
$st = 'MD';
$state = 'Maryland';
else if ( ($zipcode >= 1000 && $zipcode <= 2799) || ($zipcode == 5501) || ($zipcode == 5544 ) )
$st = 'MA';
$state = 'Massachusetts';
else if ($zipcode >= 48000 && $zipcode <= 49999)
$st = 'MI';
$state = 'Michigan';
else if ($zipcode >= 55000 && $zipcode <= 56899)
$st = 'MN';
$state = 'Minnesota';
else if ($zipcode >= 38600 && $zipcode <= 39999)
$st = 'MS';
$state = 'Mississippi';
else if ($zipcode >= 63000 && $zipcode <= 65999)
$st = 'MO';
$state = 'Missouri';
else if ($zipcode >= 59000 && $zipcode <= 59999)
$st = 'MT';
$state = 'Montana';
else if ($zipcode >= 27000 && $zipcode <= 28999)
$st = 'NC';
$state = 'North Carolina';
else if ($zipcode >= 58000 && $zipcode <= 58999)
$st = 'ND';
$state = 'North Dakota';
else if ($zipcode >= 68000 && $zipcode <= 69999)
$st = 'NE';
$state = 'Nebraska';
else if ($zipcode >= 88900 && $zipcode <= 89999)
$st = 'NV';
$state = 'Nevada';
else if ($zipcode >= 3000 && $zipcode <= 3899)
$st = 'NH';
$state = 'New Hampshire';
else if ($zipcode >= 7000 && $zipcode <= 8999)
$st = 'NJ';
$state = 'New Jersey';
else if ($zipcode >= 87000 && $zipcode <= 88499)
$st = 'NM';
$state = 'New Mexico';
else if ( ($zipcode >= 10000 && $zipcode <= 14999) || ($zipcode == 6390) || ($zipcode == 501) || ($zipcode == 544) )
$st = 'NY';
$state = 'New York';
else if ($zipcode >= 43000 && $zipcode <= 45999)
$st = 'OH';
$state = 'Ohio';
else if (($zipcode >= 73000 && $zipcode <= 73199) || ($zipcode >= 73400 && $zipcode <= 74999) )
$st = 'OK';
$state = 'Oklahoma';
else if ($zipcode >= 97000 && $zipcode <= 97999)
$st = 'OR';
$state = 'Oregon';
else if ($zipcode >= 15000 && $zipcode <= 19699)
$st = 'PA';
$state = 'Pennsylvania';
else if ($zipcode >= 300 && $zipcode <= 999)
$st = 'PR';
$state = 'Puerto Rico';
else if ($zipcode >= 2800 && $zipcode <= 2999)
$st = 'RI';
$state = 'Rhode Island';
else if ($zipcode >= 29000 && $zipcode <= 29999)
$st = 'SC';
$state = 'South Carolina';
else if ($zipcode >= 57000 && $zipcode <= 57999)
$st = 'SD';
$state = 'South Dakota';
else if ($zipcode >= 37000 && $zipcode <= 38599)
$st = 'TN';
$state = 'Tennessee';
else if ( ($zipcode >= 75000 && $zipcode <= 79999) || ($zipcode >= 73301 && $zipcode <= 73399) || ($zipcode >= 88500 && $zipcode <= 88599) )
$st = 'TX';
$state = 'Texas';
else if ($zipcode >= 84000 && $zipcode <= 84999)
$st = 'UT';
$state = 'Utah';
else if ($zipcode >= 5000 && $zipcode <= 5999)
$st = 'VT';
$state = 'Vermont';
else if ( ($zipcode >= 20100 && $zipcode <= 20199) || ($zipcode >= 22000 && $zipcode <= 24699) || ($zipcode == 20598) )
$st = 'VA';
$state = 'Virgina';
else if ( ($zipcode >= 20000 && $zipcode <= 20099) || ($zipcode >= 20200 && $zipcode <= 20599) || ($zipcode >= 56900 && $zipcode <= 56999) )
$st = 'DC';
$state = 'Washington DC';
else if ($zipcode >= 98000 && $zipcode <= 99499)
$st = 'WA';
$state = 'Washington';
else if ($zipcode >= 24700 && $zipcode <= 26999)
$st = 'WV';
$state = 'West Virginia';
else if ($zipcode >= 53000 && $zipcode <= 54999)
$st = 'WI';
$state = 'Wisconsin';
else if ($zipcode >= 82000 && $zipcode <= 83199)
$st = 'WY';
$state = 'Wyoming';
else
$st = 'none';
$state = 'none';
return 'No state found matching' . $zipcode;
return $st;
【讨论】：
【参考方案7】：在使用所提供答案的未修改版本之前，请务必考虑您的具体需求。
例如，如果您需要以下“扩展”位置，您可能需要调整提供的代码以包含以下区域：
VI（维尔京群岛https://www.zip-codes.com/state/vi.asp - 在某些答案中被列为 PR） AE（欧洲武装部队https://www.zip-codes.com/state/ae.asp） AA（美洲武装部队https://www.zip-codes.com/state/aa.asp）以下是一些（粗略的）调整，可以添加到当前接受的 Tony Brasunas 答案中：
else if (zipcode >= 601 && zipcode <= 795) || (zipcode >= 901 && zipcode <= 988) // Using (zipcode >= 300 && zipcode <= 999) includes VI
st = 'PR';
state = 'Puerto Rico'; // https://www.zip-codes.com/state/pr.asp
else if (zipcode >= 801 && zipcode <= 851)
st = 'VI';
state = 'Virgin Islands'; // https://www.zip-codes.com/state/vi.asp
else if (zipcode >= 9001 && zipcode <= 9977)
st = 'AE';
state = 'Armed Forces Europe'; // https://www.zip-codes.com/state/ae.asp
else if (zipcode >= 34001 && zipcode <= 34095)
st = 'AA';
state = 'Armed Forces Americas'; // https://www.zip-codes.com/state/aa.asp
【讨论】：
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