Pick a state
Choose a state to see its county list, then open any county for ZIP codes, population, and income. County pages are a middle layer between statewide overviews and individual ZIP dashboards.
Browse counties by state
Browse U.S. counties by state on US5. Each county page lists associated ZIP codes with population, income, and housing context so you can move from a county overview into neighborhood-level ZIP dashboards.
Related geography
Also browse states, cities, congressional districts, and ZIP rankings.
Counties by state
AL Alabama AK Alaska AZ Arizona AR Arkansas CA California CO Colorado CT Connecticut DE Delaware DC District of Columbia FL Florida GA Georgia HI Hawaii ID Idaho IL Illinois IN Indiana IA Iowa KS Kansas KY Kentucky LA Louisiana ME Maine MD Maryland MA Massachusetts MI Michigan MN Minnesota MS Mississippi MO Missouri MT Montana NE Nebraska NV Nevada NH New Hampshire NJ New Jersey NM New Mexico NY New York NC North Carolina ND North Dakota OH Ohio OK Oklahoma OR Oregon PA Pennsylvania PR Puerto Rico AS American Samoa GU Guam MP Northern Mariana Islands VI U.S. Virgin Islands RI Rhode Island SC South Carolina SD South Dakota TN Tennessee TX Texas UT Utah VT Vermont VA Virginia WA Washington WV West Virginia WI Wisconsin WY Wyoming
Frequently asked questions
- What is on each county page?
- A county overview with ZIP coverage and population, average income and home-value signals, plain-language notes, related links, and a ZIP table you can open for full profiles.
- How do counties relate to ZIP codes?
- US5 joins published ZIP profiles to county names from geography data. County pages are a browse layer for places that share a county — useful for research, not a substitute for official boundary files.
- Can I compare counties to cities or states?
- Yes. From any county page you can jump to the parent state, nearby cities, rankings, and individual ZIPs. Start with a state below if you are still choosing which counties to open.