• county
  • FIPS 06055
  • Largest town: Napa

Napa County, California

Napa County had 132,727 residents in the Census Vintage 2024 estimate, on 752.0 square miles of land. It ranks 34th of 58 in California by population and 48th by land area.

Population
132,727
#34 of 58 in California · #497 in US
Area
752.0 sq mi
#48 of 58 in California · #1,172 in US
Density
177 / sq mi
#20 of 58 in California · #610 in US
Median household income
$100,469
#14 of 58 in California · #130 in US

Census Vintage 2024 estimates · SAIPE 2023 income · 2024 Gazetteer land area

Napa County within California. Pin: Sacramento.

Measure from here

Tools and pages that start from Napa County

Napa County population, land area and income

Napa County had 132,727 residents in the Census Vintage 2024 estimate, on 752.0 square miles of land. It ranks 34th of 58 in California by population and 48th by land area. That works out to 176.5 people per square mile, 1.8 times the US average of 96.3, and in the top quarter nationally.

The median county-equivalent in California has 187,274 residents; Napa County is somewhat smaller.

Its SAIPE 2023 median household income of $100,469 is in the top tenth among 3,143 counties with an estimate.

National rank among 3,144

Population

132,727

3144th1st

497th of 3,144 (US)

Land area

752 sq mi

3144th1st

1172nd of 3,144 (US)

Density

176.5 / sq mi

3144th1st

610th of 3,144 (US)

Median household income

$100,469

3143rd1st

130th of 3,143 (US)

Rank within California (58)

Population

132,727

58th1st

34th of 58 (CA)

Land area

752 sq mi

58th1st

48th of 58 (CA)

Density

176.5 / sq mi

58th1st

20th of 58 (CA)

Median household income

$100,469

58th1st

14th of 58 (CA)

How Napa County's population changed since 2020

Napa County lost 4,738 residents between the July 2020 and July 2024 estimates, a drop of 3.4%. That ranks 53rd of 58 in California for growth. The median California county changed by -0.6%, and the state as a whole by -0.2%.

Since the April 2020 estimates base, Napa County recorded 4,821 births and 5,516 deaths, a natural change of -695. Net international migration added +1,601 and net domestic migration, people moving to or from other US counties, came to -6,216. The largest single component was domestic migration, which removed 6,216 people.

137.5k2020136.2k2021134.5k2022133.4k2023132.7k2024
Census Vintage 2024 county estimates for July 1 of each year. The axis starts above zero so year-to-year changes are visible.

Components of change, April 2020 to July 2024

Births
4,821
Deaths
5,516
Net international migration
+1,601
Net domestic migration
-6,216
Change, July 2023 to July 2024
-717

Where Napa County is

The Census internal point of Napa County is at 38.507100, -122.325900. It sits in UTM zone 10N. The map shades California's 58 county-equivalents by population change from 2020 to 2024, darker for faster growth, with Napa County outlined. Dots are towns of 1,000+ people with residents in it.

Los Angeles County: -2.4%Kings County: +1.4%Sierra County: -3.6%Riverside County: +4.3%Santa Barbara County: -0.8%San Bernardino County: +1.4%Nevada County: -0.1%Santa Clara County: +0.1%Yuba County: +6.7%Fresno County: +1.4%Plumas County: -4.7%Monterey County: -1.0%Amador County: +3.6%Alameda County: -1.9%Tulare County: +2.0%San Joaquin County: +4.5%Alpine County: -6.8%Siskiyou County: -3.4%Butte County: -0.9%Kern County: +1.8%San Diego County: -0.1%Sacramento County: +1.5%Ventura County: -1.0%Yolo County: +3.4%Lake County: -0.6%Napa County: -3.4%Tehama County: -1.9%San Francisco County: -5.4%El Dorado County: +0.8%Calaveras County: +2.5%Inyo County: -2.7%Shasta County: -0.6%Lassen County: -12.3%San Luis Obispo County: -0.0%Mariposa County: -0.5%Trinity County: -2.8%Contra Costa County: +0.6%Mendocino County: -2.4%Imperial County: +1.1%Santa Cruz County: -3.4%Placer County: +6.9%Orange County: -0.5%San Benito County: +7.2%Marin County: -1.9%San Mateo County: -2.6%Colusa County: +0.9%Del Norte County: -2.2%Solano County: +0.5%Glenn County: -2.0%Tuolumne County: -2.7%Sonoma County: -0.6%Humboldt County: -2.9%Mono County: -1.8%Stanislaus County: +0.6%Merced County: +4.9%Sutter County: -0.9%Madera County: +5.8%Modoc County: -2.1%
Change 2020 to 2024
  1. < -2.7%
  2. < -1.0%
  3. < -0.0%
  4. < +1.5%
  5. ≥ +1.5%
no data

Orange pin: Napa County internal point. Dark pin: Sacramento.

Internal point

Decimal
38.507100, -122.325900
DMS
38°30'25.56"N 122°19'33.24"W
UTM
10N 558774.6E 4262296.5N
Geohash
9qc506hbp
Plus code
84CVGM4F+RJ

Towns in Napa County

5 incorporated places of 1,000+ people have residents in Napa County, 112,222 people together, or 85% of the county. Each figure counts only the part of the town inside Napa County; towns marked "part" extend into another county. The largest is Napa with 76,921.

  1. 01Napa76,921
  2. 02American Canyon21,742
  3. 03St. Helena5,257
  4. 04Calistoga5,022
  5. 05Yountville3,280
Census Vintage 2024 subcounty estimates, county parts of incorporated places (SUMLEV 157).

Counties bordering Napa County

The Census 2024 county adjacency file lists 4 neighbors for Napa County. The most populous is Sonoma County, CA, with 485,375 residents. Distances run between Census internal points in a straight line.

Distance to Sacramento and the nearest big city

Sacramento is 45.2 miles E of Napa County's internal point in a straight line. The nearest place of 100,000 or more is Santa Rosa, CA (population 177,524), 21.0 miles away. The nearest place of 10,000 or more is Napa, CA (population 76,921), 14.5 miles away.

Napa County FIPS code

The FIPS code of Napa County is 06055: state code 06 for California plus county code 055. Use it as text, with the leading zero, when joining Census, BLS, or CDC county tables. SAIPE lists its 2023 median household income as $100,469.

Questions people ask

What is the population of Napa County, California?

The Census Vintage 2024 estimate for July 1, 2024 is 132,727. That is down 4,738 people (3.4%) from the July 2020 estimate of 137,465.

What is the FIPS code of Napa County?

06055. The first two digits (06) are California; the last three (055) identify the county.

What is the largest town in Napa County?

Napa, with 76,921 residents inside Napa County in 2024.

Which counties border Napa County?

4 county-equivalents border it in the Census 2024 adjacency file: Sonoma County, CA; Solano County, CA; Yolo County, CA; Lake County, CA.

Sources and data as of

Data as of: Census Vintage 2024 population estimates, 2024 Gazetteer land area and internal points, SAIPE 2023 median household income.

  1. 01Census Vintage 2024 county population estimates
  2. 02Census 2024 Gazetteer, counties
  3. 03Census SAIPE 2023 state and county estimates
  4. 04Census Vintage 2024 subcounty population estimates
  5. 05Census 2024 county adjacency file
  6. 06Census 2024 cartographic boundary file, counties (1:5,000,000)

How every number is computed: methodology. Spotted a wrong figure? Report an error.