Capitol Planning Region, Connecticut

The most populous of Connecticut's 9 planning regions.

Planning RegionFIPS 09110

Within Connecticut

Capitol Planning Region, highlighted, with the areas around it. Boundaries generalised from the 2025 Census cartographic boundary file; neighbour fills carry no data.

Download SVG Full Connecticut map downloads

Population: 994,115; +30,081 (+3.1%) since 2020
Land area: 1,027; square miles. A further 1.8% of the total area is water
Population density: 968; people per square mile, computed rather than published
County seat: Not available; Capitol Planning Region has no county government.
Established: Not available
Largest city: Hartford city; Population 121,981.

Satellite view

Aerial imagery of Capitol Planning Region with its boundary drawn on top. A map shows you the shape; this shows you what is inside it, and which side of the line a place falls on.

Aerial view of Capitol Planning Region, Connecticut from the USGS National Map, with its boundary outlined — Imagery: USGS National Map, USGS Imagery Only, public domain, requested from USGS by your browser when you reach this point on the page, at 800 by 678 pixels. The boundary is the 2025 Census cartographic boundary file, reprojected to Web Mercator to match the imagery. You can also open the USGS National Map viewer.

Where Capitol Planning Region ranks

Position among the 9 planning regions of Connecticut, and among all 3,144 US counties and county-equivalents. Computed from the figures on this page.

Measure	Value	In Connecticut	Nationally
Population	994,115	1st of 9	51st of 3,144
Land area	1,027 sq mi	1st of 9	646th of 3,144
Population density	968 per sq mi	5th of 9	168th of 3,144
Median household income	$93,394	4th of 9	247th of 3,143

Full data for Capitol Planning Region

Every figure below is attributed to the Census Bureau product it came from, with the vintage of that product.
Measure	Value	Source and vintage
Population	994,115	Vintage 2025 Population Estimates
Population in 2020	964,034	Vintage 2025 Population Estimates
2020 estimates base?	977,686	Vintage 2025 Population Estimates
Land area	1,027 sq mi	2025 Gazetteer Files
Water area	18.8 sq mi	2025 Gazetteer Files
Total area	1,046 sq mi	2025 Gazetteer Files
Population density?	968 per sq mi	Computed: Vintage 2025 estimates divided by 2025 Gazetteer land area
Median household income	$93,394	American Community Survey 2020-2024 5-Year Estimates
Median home value	$323,700	American Community Survey 2020-2024 5-Year Estimates
Median age	40.0	American Community Survey 2020-2024 5-Year Estimates
Households	391,113	American Community Survey 2020-2024 5-Year Estimates
Housing units	416,559	American Community Survey 2020-2024 5-Year Estimates

Sources: US Census Bureau, Population Estimates Program, Vintage 2025 Population Estimates, released 26 March 2026; US Census Bureau, Gazetteer Files, 2025 Gazetteer Files, released 10 September 2025; US Census Bureau, American Community Survey, American Community Survey 2020-2024 5-Year Estimates, released 29 January 2026. Population density is computed here, not published: it divides the Vintage 2025 population estimate by the 2025 Gazetteer land area, which are two different Census products. Retrieved 30 August 2026.

How the population changed

The Census Bureau publishes the components behind an estimate, not just the total. For the year to July 2025:

Births minus deaths: +230; 9,196 births, 8,966 deaths
Net migration: +4,636; More people moved in than moved out.

Source: US Census Bureau, Population Estimates Program, Vintage 2025 Population Estimates, released 26 March 2026. Retrieved 30 August 2026.

The 7 areas bordering Capitol Planning Region

Ordered by the length of the border actually shared, which the Census Bureau publishes in its county adjacency file and which no other county reference presents.

Bordering area	State	Shared border	Population
Hampden County	Massachusetts	41 mi	464,338
Southeastern Connecticut Planning Region	Connecticut	32 mi	284,015
Northwest Hills Planning Region	Connecticut	27 mi	114,690
Northeastern Connecticut Planning Region	Connecticut	23 mi	98,096
Lower Connecticut River Valley Planning Region	Connecticut	22 mi	177,311
Naugatuck Valley Planning Region	Connecticut	21 mi	463,349
South Central Connecticut Planning Region	Connecticut	9.2 mi	578,741

Source: US Census Bureau, County Adjacency File, 2025 County Adjacency File, released 15 September 2025. Retrieved 30 August 2026.

Side by side

All 9 planning regions of Connecticut

Open the interactive Connecticut county map, or jump straight to any of them.

Data on this page last rebuilt 30 August 2026. How these figures are produced.