Every ZIP code in the United States, with weather, radar, trivia and the numbers behind it. Five digits since 1963!

ZIP stands for Zone Improvement Plan. The codes went live on July 1, 1963.The lowest ZIP code is 00501 — the IRS in Holtsville, New York.The highest ZIP code is 99950, in Ketchikan, Alaska.Type 07734 into a calculator and turn it upside down: hELLO. It is Keansburg, New Jersey.12345 belongs to one company: General Electric in Schenectady, New York.The first digit is a region: 0 is New England and New Jersey, 9 is the West Coast, Alaska and Hawaii.Mr. ZIP, the cartoon mailman, was the mascot that sold the idea to America.ZIP+4 arrived in 1983 and can narrow a ZIP down to one side of one block.A ZIP code is a mail route, not a place: plenty of them cross county and even state lines.Play ZIP Hunt: guess the secret ZIP code of the day in six tries.
zipcodes.pro — RANKINGS/VT/HIGHEST-DENSITY

Most Densely Populated ZIP Codes in Vermont

What this measures. People per square mile of land area. Source: Census American Community Survey and Gazetteer, data release 2026-10-12.

# ZIP City County People per sq mi
1 05405 Burlington Chittenden 15,919
2 05439 Colchester Chittenden 8,469
3 05404 Winooski Chittenden 5,966
4 05401 Burlington Chittenden 5,199
5 05344 Marlboro Windham 4,112
6 05408 Burlington Chittenden 2,474
7 05088 Wilder Windsor 1,358
8 05403 South Burlington Chittenden 1,261
9 05073 Taftsville Windsor 810
10 05050 Mc Indoe Falls Caledonia 630
11 05452 Essex Junction Chittenden 561
12 05446 Colchester Chittenden 450
13 05904 Gilman Essex 340
14 05482 Shelburne Chittenden 328
15 05495 Williston Chittenden 320
16 05701 Rutland Rutland 301
17 05678 Websterville Washington 277
18 05478 Saint Albans Franklin 263
19 05641 Barre Washington 253
20 05765 Proctor Rutland 251
21 05083 West Fairlee Orange 244
22 05001 White River Junction Windsor 228
23 05850 Lyndon Center Caledonia 220
24 05468 Milton Chittenden 213
25 05030 Ascutney Windsor 212
26 05150 North Springfield Windsor 207
27 05654 Graniteville Orange 197
28 05154 Saxtons River Windham 186
29 05254 Manchester Bennington 175
30 05141 Cambridgeport Windham 169
31 05257 North Bennington Bennington 161
32 05201 Bennington Bennington 151
33 05156 Springfield Windsor 149
34 05052 North Hartland Windsor 149
35 05101 Bellows Falls Windham 149
36 05677 Waterbury Center Washington 146
37 05354 Vernon Windham 141
38 05602 Montpelier Washington 140
39 05458 Grand Isle Grand Isle 136
40 05477 Richmond Chittenden 133
41 05753 Middlebury Addison 132
42 05825 Coventry Orleans 129
43 05488 Swanton Franklin 127
44 05855 Newport Orleans 125
45 05736 Center Rutland Rutland 125
46 05447 East Berkshire Franklin 122
47 05301 Brattleboro Windham 118
48 05461 Hinesburg Chittenden 117
49 05158 Westminster Windham 113
50 05663 Northfield Washington 113

Showing the top 50 of 265 ZIP codes in Vermont that have this figure . 05405 ranks 1st at 15,919, against 113 in 50th place.

Other rankings for Vermont

Cite this page

zipcodes.pro. “Most Densely Populated ZIP Codes in Vermont.” Data release 2026-10-12. Retrieved 2026-10-20. https://zipcodes.pro/rankings/vt/highest-density

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