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/WV/HIGHEST-DENSITY

Most Densely Populated ZIP Codes in West Virginia

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 25755 Huntington Cabell 19,341
2 26506 Morgantown Monongalia 6,202
3 25703 Huntington Cabell 4,503
4 25156 Pinch Kanawha 4,250
5 25112 Institute Kanawha 4,120
6 26505 Morgantown Monongalia 2,968
7 25401 Martinsburg Berkeley 2,561
8 26040 Mcmechen Marshall 2,525
9 25109 Hometown Putnam 2,520
10 26159 Paden City Wetzel 2,410
11 25303 South Charleston Kanawha 2,069
12 25301 Charleston Kanawha 1,863
13 25705 Huntington Cabell 1,807
14 26750 Piedmont Mineral 1,803
15 25909 Prosperity Raleigh 1,802
16 25507 Ceredo Wayne 1,688
17 25432 Millville Jefferson 1,644
18 26074 West Liberty Ohio 1,427
19 25064 Dunbar Kanawha 1,359
20 25873 Mac Arthur Raleigh 1,352
21 25162 Pratt Kanawha 1,335
22 25871 Mabscott Raleigh 1,153
23 26134 Belmont Pleasants 1,133
24 25054 Dawes Kanawha 1,112
25 26451 West Milford Harrison 1,101
26 25302 Charleston Kanawha 1,062
27 26574 Grant Town Marion 1,031
28 26105 Vienna Wood 1,016
29 25067 East Bank Kanawha 984
30 26560 Baxter Marion 975
31 25143 Nitro Kanawha 971
32 26101 Parkersburg Wood 909
33 25304 Charleston Kanawha 899
34 26435 Simpson Taylor 897
35 25387 Charleston Kanawha 859
36 26037 Follansbee Brooke 839
37 24855 Kyle McDowell 813
38 25826 Corinne Wyoming 769
39 25419 Falling Waters Berkeley 755
40 25438 Ranson Jefferson 750
41 26062 Weirton Hancock 742
42 25855 Hilltop Fayette 724
43 25177 Saint Albans Kanawha 718
44 25011 Bancroft Putnam 713
45 25428 Inwood Berkeley 675
46 25405 Martinsburg Berkeley 658
47 25702 Huntington Cabell 657
48 25086 Glasgow Kanawha 656
49 25404 Martinsburg Berkeley 633
50 26534 Granville Monongalia 622

Showing the top 50 of 738 ZIP codes in West Virginia that have this figure . 25755 ranks 1st at 19,341, against 622 in 50th place.

Other rankings for West Virginia

Cite this page

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

Underlying data is public domain or openly licensed — sources, vintages and licences.