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COUNTY · 1990 CENSUS

Sonoma County

California · 388,222 residents · 1,575.337 sq mi
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The short version

Sonoma County is wealthier than most US places, with a median household income of $36,299. Population has fallen 15% since 2000, a loss of 70,392 residents. Median home value is $200,600.

At a glance
Wealthier
above the US median
US median: $30,130
Mid-age
median age 34.9
US median: 33.0
More educated
25% hold a bachelor's degree
US average: 20%
Stable housing
home values roughly flat, inflation adjusted
US median home: $93,722
Section 01

Population & growth

Total population
388,222
−15%vs 2000
vs 458,614 in 2000
1990 – 2025
Population density
246 / sq mi
−15%vs 2000
vs 291 / sq mi in 2000
US average: 221
Median age
34.9
−7%vs 2000
vs 37.5 in 2000
US average: 33.0
Population, 1990 – 2024
377K411K445K479K513K1990201020202024Sonoma County
2024485K
1990201020202024
Section 02

Income & economy

Median household income
$36,299
−10%inflation adjusted, since 2000
vs $53,076 in 2000
US average: $30,130
1990 – 2024
Per capita income
$17,239
−33%vs 2000
vs $25,724 in 2000
US average: $14,340
Poverty rate
7.6%
−0.4 ptsvs 2000
vs 8.1% in 2000
US average: 13.2%
Section 03

Housing

Median home value
$200,600
Unchangedinflation adjusted, since 2000
vs $265,200 in 2000
US average: $93,722
1990 – 2024
Median gross rent
$645
−2%inflation adjusted, since 2000
vs $864 in 2000
US average: $450
Owner-occupied
62.9%
−1.2 ptsvs 2000
vs 64.1% in 2000
37.1% rent
Afford Score
5.5
+11%vs 2000
vs 5.0 in 2000
1990 – 2024
RELATED:See current rent listings in Sonoma County on RentDataNow
Section 04

Race & ethnicity

2000
White, non-Hispanic74.5%(341,686)
Black1.3%(6,116)
Hispanic / Latino17.3%(79,511)
Asian3%(13,786)
Other0%
Diversity Score45.8%(209,985)
1990
White, non-Hispanic90.7%(351,983)
Black1.4%(5,554)
Hispanic / Latino10.2%(39,537)
Asian2.8%(10,881)
Other5.1%(19,804)
Diversity Score38.9%(151,120)
Diversity Score
39
−15%vs 2000
vs 46 in 2000
1990 – 2024
Section 05

Education

Bachelor's degree or higher
24.5%
−4.0 ptsvs 2000
vs 28.5% in 2000
US average: 20.3%
High school or higher
84.4%
−0.5 ptsvs 2000
vs 84.9% in 2000
US average: 75.2%
Graduate degree
7.9%
−1.8 ptsvs 2000
vs 9.7% in 2000
US average: 7.1%
Section 06

Commute & transportation

Average commute
24.8 min
+28%vs 2000
vs 19.3 min in 2000
US average: 21.9
Section 07

Work & employment

No data for the years selected.

Section 08

People & community

No data for the years selected.

Drill deeper

Places similar to Sonoma County

Burlington County
Pop 481,439
Dakota County
Pop 457,710
Kane County
Pop 525,757
St. Charles County
Pop 426,499
Places similar to Sonoma County
Head to head

Compare Sonoma County to nearby counties

SONOMA COUNTY VS
Napa County
Income$111,471+207%
Home value$869,500+333%
Population132,949−73%
SEE FULL COMPARISON →
SONOMA COUNTY VS
Marin County
Income$149,091+311%
Home value$1,507,300+651%
Population253,694−48%
SEE FULL COMPARISON →
SONOMA COUNTY VS
Lake County
Income$60,621+67%
Home value$324,300+62%
Population67,772−86%
SEE FULL COMPARISON →
SONOMA COUNTY VS
San Francisco County
Income$140,970+288%
Home value$1,394,500+595%
Population826,079+70%
SEE FULL COMPARISON →
Frequently asked

How many people live in Sonoma County, California?

Sonoma County, California has about 388,222 residents according to the 1990 Census.

What is the median household income in Sonoma County, California?

The typical household in Sonoma County, California earns about $36,299 a year. Half of households make more than that, and half make less.

Is Sonoma County, California expensive?

In Sonoma County, California, the median home is worth about $200,600, and the typical rent is about $645 a month.

How educated are people in Sonoma County, California?

About 24.5% of adults age 25 and over in Sonoma County, California hold a bachelor's degree or higher.

What is the poverty rate in Sonoma County, California?

About 7.6% of people in Sonoma County, California live below the federal poverty line.

Keep going

Explore from here

122 census tracts (top 20 by population)
Census Tract 1514.05Census Tract 1513.11Census Tract 1530.01Census Tract 1530.06Census Tract 1529.06Census Tract 1530.02Census Tract 1513.05Census Tract 1506.03Census Tract 1542.02Census Tract 1526.01Census Tract 1513.09Census Tract 1533.01Census Tract 1503.04Census Tract 1530.05Census Tract 1513.10Census Tract 1515.06Census Tract 1533.02Census Tract 1530.03Census Tract 1529.04Census Tract 1507.01
38 ZIP codes (top 30 by population)
ZIP 94928ZIP 95403ZIP 95407ZIP 94954ZIP 95404ZIP 95401ZIP 95476ZIP 95472ZIP 95492ZIP 95409ZIP 95405ZIP 95448ZIP 95425ZIP 94931ZIP 94515ZIP 95436ZIP 95446ZIP 95442ZIP 94951ZIP 95452ZIP 95441ZIP 95421ZIP 94923ZIP 95497ZIP 95465ZIP 95462ZIP 95444ZIP 95439ZIP 95471ZIP 95412
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DATA: US CENSUS BUREAU ACS 5-YEAR + DECENNIAL CENSUS · UPDATED 2024

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