Middlesex, CT Demographics
Middlesex, CT is the 8th most populous of 9 counties in Connecticut, with 164,183 residents across 369 square miles. That is about 445 people per square mile.
At the 2020 census
| Population | 164,183 |
|---|---|
| Land area | 369 sq mi |
| Density | 445 / sq mi |
Data: 2020 Census · American Community Survey 2024
How Middlesex compares to the US
We're computing this county's comparison table — check back shortly. Population, land area, and density above are already exact.
Central Location: Middlesex, CT
Measured from the county's main population center using 2020 census blocks.
We're computing the drive-time and radius areas around Middlesex, CT — check back shortly. Meanwhile you can drop a pin anywhere in the radius tool.
Related places
Other counties nearby
- Capitol Planning Region, CT
- Western Connecticut Planning Region, CT
- South Central Connecticut Planning Region, CT
- Naugatuck Valley Planning Region, CT
- Greater Bridgeport Planning Region, CT
- Southeastern Connecticut Planning Region, CT
- Lower Connecticut River Valley Planning Region, CT
- Northwest Hills Planning Region, CT
Nearest counties
Metro areas containing Middlesex
About this page
This page shows demographics for a US county from the 2020 census and the American Community Survey: population, land area, density, urban share, and how the county compares to national averages for income, housing, age, and more.
Counties subdivide into census tracts, listed below with their populations. The drive-time and radius tables measure the population around the county's main population center.