Census Bureau
ZIP, county & metro crosswalks
Which counties each ZIP code falls in (Census land overlap), each ZIP's primary county, and which metro area each county belongs to. Connecticut uses its planning regions.
Published by Census Bureau
Finest detail ZIP
Tables 5
How we use this · on 9 desks
“Which county is this ZIP code mostly in?”
Where you'll see it
- CareSite Ops: Counties under strain, Facility dossier, Dashboard, Help, and 8 more
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- Business & Site Planning: Workers and wages, Metro dossier, 1 · Markets, Farms & food, and 3 more
- Disaster Readiness: Area study, Build a region, Know the risk, People & resources, and 2 more
- Rural Development: Check an address, County profile, Find grants, Help
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What we added
- The glue behind every page: it lets ZIP, county, and metro data meet
- Connecticut's new planning regions filled in, where the agency still reports the old counties
- Checked every day for a new release, and loaded when there is one
ZIP → primary county
Sample of 25 rows out of about 33,859
· 9 columns
| zcta | primary_county_geoid | primary_county_name | state_fips | state_abbr | arealand_part | arealand_share | n_counties | rule_version |
|---|---|---|---|---|---|---|---|---|
| 09170 | South Central Connecticut Planning Region | 09 | CT | 60749.0 | 1.0 | 4 | land_fallback_v2 | |
| 00601 | 72001 | Adjuntas Municipio | 72 | PR | 164781682.0 | 0.9876 | 2 | people_v2 |
| 00602 | 72003 | Aguada Municipio | 72 | PR | 78530159.0 | 0.9998 | 2 | people_v2 |
| 00603 | 72005 | Aguadilla Municipio | 72 | PR | 88747846.0 | 0.9976 | 2 | people_v2 |
| 00606 | 72093 | Maricao Municipio | 72 | PR | 94466099.0 | 0.8227 | 3 | people_v2 |
| 00610 | 72011 | Añasco Municipio | 72 | PR | 93009966.0 | 0.9676 | 4 | people_v2 |
| 00611 | 72141 | Utuado Municipio | 72 | PR | 27570859.0 | 1.0 | 1 | people_v2 |
| 00612 | 72013 | Arecibo Municipio | 72 | PR | 195161357.0 | 0.9896 | 3 | people_v2 |
| 00616 | 72013 | Arecibo Municipio | 72 | PR | 28189755.0 | 1.0 | 1 | people_v2 |
| 00617 | 72017 | Barceloneta Municipio | 72 | PR | 47372606.0 | 0.9965 | 2 | people_v2 |
| 00622 | 72023 | Cabo Rojo Municipio | 72 | PR | 80724808.0 | 1.0 | 1 | people_v2 |
| 00623 | 72023 | Cabo Rojo Municipio | 72 | PR | 101522968.0 | 1.0 | 1 | people_v2 |
| 00624 | 72111 | Peñuelas Municipio | 72 | PR | 115558559.0 | 0.9501 | 2 | people_v2 |
| 00627 | 72027 | Camuy Municipio | 72 | PR | 120058676.0 | 0.9997 | 2 | people_v2 |
| 00631 | 72081 | Lares Municipio | 72 | PR | 4004634.0 | 0.4946 | 2 | people_v2 |
| 00636 | 72125 | San Germán Municipio | 72 | PR | 949819.0 | 1.0 | 1 | people_v2 |
| 00637 | 72121 | Sabana Grande Municipio | 72 | PR | 85628403.0 | 0.94 | 3 | people_v2 |
| 00638 | 72039 | Ciales Municipio | 72 | PR | 169929646.0 | 0.9189 | 3 | people_v2 |
| 00641 | 72141 | Utuado Municipio | 72 | PR | 217772289.0 | 0.9996 | 2 | people_v2 |
| 00646 | 72051 | Dorado Municipio | 72 | PR | 52970379.0 | 0.9715 | 2 | people_v2 |
| 00647 | 72055 | Guánica Municipio | 72 | PR | 40217156.0 | 0.9821 | 2 | people_v2 |
| 00650 | 72054 | Florida Municipio | 72 | PR | 39225458.0 | 0.4775 | 6 | people_v2 |
| 00652 | 72013 | Arecibo Municipio | 72 | PR | 16685216.0 | 1.0 | 1 | people_v2 |
| 00653 | 72055 | Guánica Municipio | 72 | PR | 55739865.0 | 0.9745 | 2 | people_v2 |
| 00656 | 72059 | Guayanilla Municipio | 72 | PR | 105926727.0 | 0.9704 | 2 | people_v2 |
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