Sonoma County Supervisorial District 1 Demographics

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The following demographic and economic information pertains to Sonoma County Supervisorial District 1, which comprises the Sonoma Valley and east Santa Rosa.

Demographics

Population: 96,162 people
Median Age: 50.1 years old
Hispanic Population: 22.9%

Educational Attainment Breakdown

5.8% with less than a High School Diploma
15.7% with a High School Diploma
17.6% with some college
9.6% with an associate’s degree
31.4% with a bachelor’s degree
19.9% with a postgraduate degree

Age Range Distribution

8.0% ages 0–9 years old
15.0% ages 10–24 years old
9.7% ages 25–34 years old
11.3% ages 35–44 years old
11.6% ages 45–54 years old
12.8% ages 55–64 years old
31.7% ages 65+ years old

Income

Median Household Income: $122,809
Expenditure Index: 141

Household Income Distribution

8.1% with <$25,000 annually
10.5% with $25,000–$49,999 annually
12.1% with $50,000–$74,999 annually
9.3% with $75,000–$99,999 annually
19.6% with $100,000–$149,999 annually
40.3% with $150,000+ annually

Business and Workforce

Total Employees: 30,532
Unemployment Rate: 6.3%
Total Businesses: 4,072

Commute Time to Work Distribution

49.4% with 0–19 minutes
31.4% with 20–39 minutes
8.8% with 40–59 minutes
10.4% with 60+ minutes

Top Industries by Share of Total Employment

Healthcare (15.8%)
Professional/Technical Services (12.5%)
Educational Services (10.1%)
Manufacturing (8.6%)
Retail Trade (8.5%)
Construction (8.0%)
Other Services (5.6%)

Housing

Homeownership Rate: 64.9%
Renter Occupancy Rate: 35.1%
Median Home Value: $911,154
Median Monthly Rent: $2,281
Housing Cost-to-Income Ratio: 43.6%

*Compares average local expenditures to U.S. levels: <100 = less than national average and >100 = greater than national average.

**Esri 2026 estimate of percent of income for mortgage.