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Kennebec County, ME Demographics

Kennebec County, ME is the 4th most populous of 16 counties in Maine, with 123,642 residents across 867 square miles. That is about 143 people per square mile.

At the 2020 census

Population 123,642
Land area 867 sq mi
Density 143 / sq mi

Data: 2020 Census · American Community Survey 2024

How Kennebec County 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: Kennebec County, ME

Measured from the county's main population center using 2020 census blocks.

We're computing the drive-time and radius areas around Kennebec County, ME — check back shortly. Meanwhile you can drop a pin anywhere in the radius tool.

Census tracts in Kennebec County, ME

Name Population Sq mi Per sq mi
Census Tract 241.02 5,092 1.5 3,311
Census Tract 101 4,963 22.0 225
Census Tract 170 4,645 42.2 110
Census Tract 106.01 4,618 34.3 135
Census Tract 180 4,520 44.3 102
Census Tract 250.01 4,425 19.1 231
Census Tract 200 4,408 49.9 88
Census Tract 110 4,267 14.0 304
Census Tract 105 4,253 13.0 327
Census Tract 102 4,108 14.1 291
Census Tract 241.01 4,106 2.8 1,493
Census Tract 230.02 4,072 32.0 127
Census Tract 130 4,066 34.0 120
Census Tract 230.01 3,876 4.9 798
Census Tract 140.01 3,734 16.1 232
Census Tract 108.04 3,671 24.6 149
Census Tract 120 3,586 37.4 96
Census Tract 242.02 3,554 8.3 430
Census Tract 155 3,447 87.6 39
Census Tract 210 3,370 43.9 77
Census Tract 103 3,359 3.9 852
Census Tract 160 3,250 43.2 75
Census Tract 242.01 3,076 1.0 3,156
Census Tract 108.03 2,995 11.2 266
Census Tract 106.02 2,778 19.5 142
Census Tract 220 2,715 28.4 96
Census Tract 190 2,632 34.6 76
Census Tract 150 2,597 29.2 89
Census Tract 107 2,570 5.9 438
Census Tract 108.01 2,456 21.4 115
Census Tract 140.02 2,387 15.1 158
Census Tract 145 2,289 48.4 47
Census Tract 104 2,216 2.1 1,073
Census Tract 205 2,042 49.2 41
Census Tract 250.02 1,805 6.6 274
Census Tract 109 1,694 1.7 1,025

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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.

Read how BlockAtlas computes population within an area →