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Napa County, CA Demographics

Napa County, CA is the 34th most populous of 58 counties in California, with 138,019 residents across 752 square miles. That is about 184 people per square mile.

At the 2020 census

Population 138,019
Land area 752 sq mi
Density 184 / sq mi

Data: 2020 Census · American Community Survey 2024

How Napa 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: Napa County, CA

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

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

Census tracts in Napa County, CA

Name Population Sq mi Per sq mi
Census Tract 2010.04 6,836 1.0 6,835
Census Tract 2005.04 6,577 0.7 9,217
Census Tract 2008.02 5,887 5.2 1,139
Census Tract 2003.01 5,602 1.1 5,105
Census Tract 2008.04 5,535 0.5 11,675
Census Tract 2010.03 5,447 28.0 194
Census Tract 2020 5,228 2.6 2,029
Census Tract 2005.01 5,159 0.8 6,778
Census Tract 2017 4,984 68.7 73
Census Tract 2006.01 4,892 0.8 6,201
Census Tract 2012 4,700 23.0 204
Census Tract 2006.02 4,594 1.3 3,583
Census Tract 2007.04 4,493 0.6 7,508
Census Tract 2010.07 4,226 0.5 8,392
Census Tract 2004 3,579 2.5 1,446
Census Tract 2013 3,436 1.5 2,310
Census Tract 2010.06 3,422 0.6 5,578
Census Tract 2007.07 3,302 0.6 5,739
Census Tract 2002.01 3,259 0.5 6,051
Census Tract 2007.06 3,238 0.7 4,517
Census Tract 2016.02 3,169 2.4 1,297
Census Tract 2007.03 3,078 0.9 3,546
Census Tract 2007.05 2,845 0.5 5,795
Census Tract 2014.02 2,762 12.3 224
Census Tract 2003.02 2,721 0.7 3,739
Census Tract 2014.01 2,709 39.6 68
Census Tract 2005.03 2,645 0.5 5,207
Census Tract 2005.05 2,617 0.3 8,918
Census Tract 2010.05 2,602 11.3 230
Census Tract 2002.02 2,479 0.4 6,367
Census Tract 2002.03 2,312 0.3 7,389
Census Tract 2016.01 2,261 2.4 937
Census Tract 2008.03 2,149 2.0 1,091
Census Tract 2011.01 2,077 0.7 3,109
Census Tract 2011.02 1,811 58.2 31
Census Tract 2018 1,781 264.1 7
Census Tract 2015 1,703 51.7 33
Census Tract 2019 1,138 69.5 16
Census Tract 2014.03 697 91.1 8
Census Tract 2009 67 1.9 36

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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 →