Middlesex County Population 2017

Middlesex County's estimated population is 163,329 with a growth rate of -0.15% in the past year according to the most recent United States census data. Middlesex County is the 6th largest county in Connecticut.

Year Population Growth Growth Rate
2016163,329-248-0.15%
2015163,577-978-0.59%
2014164,555-664-0.40%
2013165,219-293-0.18%
2012165,512-713-0.43%
2011166,2255940.36%
2010165,63122,43515.67%
1990143,19614,17910.99%
1980129,01714,20112.37%
1970114,81625,95129.20%
196088,86521,53331.98%
195067,33211,33320.24%
194055,9994,6118.97%
193051,3883,8388.07%
192047,5501,9134.19%
191045,6373,8779.28%
190041,7602,2365.66%
189039,5243,93511.06%
188035,589-510-1.41%
187036,0995,24016.98%
186030,8593,64313.39%
185027,2162,3379.39%
184024,879350.14%
183024,8442,43910.89%
182022,4051,6828.12%
181020,7238764.41%
180019,8479925.26%
179018,8550.00%

Middlesex County Population Growth

Population Data via

Middlesex County Race Data

Race Population Percentage
White146,14789.48%
Black or African American8,8005.39%
Asian4,9423.03%
Two or More Races3,1561.93%
American Indian and Alaska Native4210.26%
Native Hawaiian and Other Pacific Islander1110.07%

Middlesex County Population Pyramid

0k2k4k6k8kMiddlesex County Male Population0k2k4k6k8kMiddlesex County Female Population

Population of Cities in Middlesex County

City 2010 Census 2016 Estimated Growth Growth Rate
Middletown4764846544-1104-2.32%
Data Sources
  1. US Census City/Town Population estimates - Most recent state estimates from the Census Bureau's Population Estimates Program
  2. Population of States and Counties of the United States: 1790 - 1990