County data explorer
Connecticut county data and maps
Explore available county datasets, rankings and source notes.
Published topics
Rankings
Rankings describe published ACS estimates; follow each link for vintage and limitations.
Find a county
Links open county overviews where available and otherwise existing housing pages. The full alphabetical list works without JavaScript.
- Capitol Planning Region GEOID 09110
- Greater Bridgeport Planning Region GEOID 09120
- Lower Connecticut River Valley Planning Region GEOID 09130
- Naugatuck Valley Planning Region GEOID 09140
- Northeastern Connecticut Planning Region GEOID 09150
- Northwest Hills Planning Region GEOID 09160
- South Central Connecticut Planning Region GEOID 09170
- Southeastern Connecticut Planning Region GEOID 09180
- Western Connecticut Planning Region GEOID 09190
Sources and limitations
Topic pages identify their sources, vintages, downloads and limitations. ACS estimates include survey uncertainty; crime counts are not population-normalized and do not establish safety or risk. PEP and ACS are distinct population series.