U.S. ZIP codes, placed and explained
Find any ZIP code
PlainZIP counts 33,774 residential ZIP codes (Census 2020 ZCTAs) and 7,932 more for PO boxes, single organizations, the military and the island areas (GeoNames); the Postal Service counts 41,554 in all (Postal Facts 2024). Type a ZIP code to see where it is, or a town to see all of its ZIP codes.
- Census2020
- GeoNames2026
- ACS2020-24
Source: the PlainZIP index the lookup reads: every USPS ZIP code in GeoNames and every Census 2020 ZCTA.
ZIP codes by state
350–352, 354–369Alaska245 ZIPs
995–999Arizona417 ZIPs
12 prefixesArkansas615 ZIPs
716–729California1,802 ZIPs
60 prefixesColorado527 ZIPs
800–816Connecticut288 ZIPs
060–069Delaware68 ZIPs
197–199District of Columbia57 ZIPs
6 prefixesFlorida1,013 ZIPs
26 prefixesGeorgia751 ZIPs
300–319, 398–399Hawaii97 ZIPs
967–968Idaho279 ZIPs
832–838Illinois1,396 ZIPs
600–620, 622–629Indiana807 ZIPs
460–479Iowa970 ZIPs
500–516, 520–528Kansas704 ZIPs
660–662, 664–679Kentucky780 ZIPs
400–418, 420–427Louisiana539 ZIPs
13 prefixesMaine426 ZIPs
039–049Maryland477 ZIPs
205–212, 214–219Massachusetts539 ZIPs
010–027, 055Michigan992 ZIPs
480–499Minnesota881 ZIPs
550–551, 553–567Mississippi427 ZIPs
386–397Missouri1,035 ZIPs
27 prefixesMontana369 ZIPs
590–599Nebraska586 ZIPs
680–681, 683–693Nevada181 ZIPs
8 prefixesNew Hampshire247 ZIPs
030–038New Jersey598 ZIPs
070–089New Mexico371 ZIPs
870–871, 873–884New York1,826 ZIPs
52 prefixesNorth Carolina853 ZIPs
270–289North Dakota388 ZIPs
580–588Ohio1,233 ZIPs
430–459Oklahoma664 ZIPs
17 prefixesOregon428 ZIPs
970–979Pennsylvania1,833 ZIPs
150–196Puerto Rico132 ZIPs
006–007, 009Rhode Island81 ZIPs
028–029South Carolina424 ZIPs
290–299South Dakota375 ZIPs
570–577Tennessee636 ZIPs
370–385Texas1,990 ZIPs
52 prefixesUtah298 ZIPs
840–847Vermont265 ZIPs
050–054, 056–059Virginia903 ZIPs
29 prefixesWashington605 ZIPs
980–986, 988–994West Virginia738 ZIPs
247–268Wisconsin783 ZIPs
18 prefixesWyoming179 ZIPs
820–831, 834
Source: U.S. Census Bureau 2020 ZCTAs (residential ZIP codes) and their first three digits.
Cities with the most ZIP codes
- Houston, TX 97 ZIPs
- New York, NY 69 ZIPs
- Los Angeles, CA 66 ZIPs
- San Antonio, TX 59 ZIPs
- Chicago, IL 56 ZIPs
- Miami, FL 56 ZIPs
- Dallas, TX 51 ZIPs
- Minneapolis, MN 51 ZIPs
- Kansas City, MO 50 ZIPs
- Philadelphia, PA 50 ZIPs
- Cincinnati, OH 46 ZIPs
- Saint Louis, MO 46 ZIPs
- Austin, TX 44 ZIPs
- Las Vegas, NV 44 ZIPs
- Denver, CO 43 ZIPs
- Oklahoma City, OK 43 ZIPs
- Phoenix, AZ 43 ZIPs
- Pittsburgh, PA 43 ZIPs
- San Diego, CA 41 ZIPs
- Atlanta, GA 40 ZIPs
- Brooklyn, NY 38 ZIPs
- Indianapolis, IN 38 ZIPs
- Seattle, WA 38 ZIPs
- Tucson, AZ 38 ZIPs
Source: residential ZIP codes (Census 2020 ZCTAs) grouped by their USPS postal name.
Other ways in
By county or by digits
Every ZIP code lies in at least one county; 9,447 of them cross a county line. ZIP codes by county lists them, with each ZIP's share. The first three digits name a sectional center: all 711 prefixes.
Compare ZIP codes
Rankings order ZIP codes by income, home value, people and density. Research asks what changed between the 2015-2019 and 2020-2024 surveys: 2,643 ZIP codes saw incomes rise by more than the margins of error, far more than chance alone would give; the 892 measured falls are about what chance gives.
Source: U.S. Census Bureau, ACS 2015-2019 and 2020-2024 5-year estimates; 2020 ZCTA-county relationship file.