Seacliff, California Demographics & Population 2026
During the 2020–2024 ACS period, Seacliff, California had a total population of 3,299, the 767th largest community in California, with a median household income of $130,385, which is 32% higher than the state average. The poverty rate is 5.5%.
Data vintage: U.S. Census Bureau ACS 2020–2024 5-Year Estimates · refreshed July 2026 · Methodology & source notes
Key Takeaways
- Household income is 32% above the state average — one of the wealthiest communities in California.
- Housing affordability is a challenge — homes cost 8.8x the median household income.
Seacliff Quick Facts
How Seacliff Changed
Change from the 2019–2023 ACS period to 2020–2024. These are rolling five-year estimates, not year-over-year measurements.
| Metric | 2019–2023 | 2020–2024 | Change |
|---|---|---|---|
| Population | 3,488 | 3,299 | -5.4% |
| Median household income | $121,845 | $130,385 | +7.0% |
| Median home value | $1,085,900 | $1,143,600 | +5.3% |
How Seacliff Compares
Median Household Income
Median Home Value
Economy & Housing
Household Income Distribution
Detailed income brackets
Employment
Housing Overview
People & Demographics
Age Distribution
Race & Ethnicity
Diversity Index
Moderate diversity with one or two groups making up the majority.
State average: 70 | National average: 61
Education
Educational Attainment (Adults 25+)
Seacliff Rankings in California
Explore California Rankings
Other Cities in Santa Cruz County
| City | Population | Median Income | Poverty | Home Value |
|---|---|---|---|---|
| Santa Cruz | 61,607 | $115,475 | 17.0% | $1,209,000 |
| Watsonville | 51,712 | $78,393 | 14.7% | $686,000 |
| Live Oak | 16,911 | $103,674 | 12.9% | $1,015,200 |
| Scotts Valley | 12,044 | $143,750 | 5.9% | $1,105,700 |
| Soquel | 10,679 | $118,777 | 9.7% | $957,300 |
| Capitola | 9,689 | $102,976 | 12.9% | $783,000 |
| Rio del Mar | 9,201 | $159,929 | 2.3% | $1,338,100 |
| Interlaken | 8,068 | $109,150 | 14.9% | $831,000 |
| Ben Lomond | 6,858 | $130,041 | 4.9% | $960,700 |
| Aptos | 6,404 | $134,048 | 5.9% | $1,093,300 |
Cities Similar to Seacliff
These cities in the same state have comparable population and economic profiles.
| City | Population | Median Income | Home Value | Bachelor's+ | Poverty |
|---|---|---|---|---|---|
| Auburn Lake Trails | 3,284 | $134,007 | $560,300 | 37.0% | 6.9% |
| Val Verde | 3,291 | $135,917 | $564,400 | 18.5% | 5.7% |
| Ridgemark | 3,403 | $129,744 | $850,300 | 40.1% | 4.6% |
| Carmel-by-the-Sea | 3,162 | $129,250 | $2,000,000+ | 72.9% | 6.2% |
| El Verano | 3,443 | $123,738 | $909,300 | 32.5% | 3.1% |
Population Overview
Seacliff is a small community located in California, within Santa Cruz County. The total population is 3,299. It ranks as the 767th most populous out of 1,570 Census-designated places in California.
Age Demographics
The median age in Seacliff is 44.7 years. This is 18% higher than the state median of 37.9 years. Only 14.0% of residents are under 18, indicating fewer families with children.
Economy, Income & Housing
The median household income in Seacliff is $130,385. This is 32% higher than the state median of $99,122. It is also 61% higher than the national median of $80,734. The poverty rate stands at 5.5%. This is 54% lower than the state poverty rate of 12.0%. The unemployment rate is 4.9%. This is 26% lower than the state rate of 6.6%. The median home value is $1,143,600. Housing costs are 56% higher than the state median of $734,700. The home-value-to-income ratio of 8.8x suggests that housing affordability is a significant concern for many residents. 52.6% of occupied housing units are owner-occupied. This homeownership rate is 6% lower than the state average of 55.9%.
Race & Ethnicity
The largest racial or ethnic group in Seacliff is White (non-Hispanic), making up 65.0% of the population. Hispanic or Latino residents account for 16.1%. The White (non-Hispanic) population is significantly higher than the state average (65.0% vs 33.8%). The Black or African American population (0.7%) is well below the state average of 5.2%. The Hispanic or Latino population (16.1%) is well below the state average of 40.2%. The Asian population (3.3%) is well below the state average of 15.3%.
Education
45.1% of residents aged 25 and older hold a bachelor's degree or higher. This is 22% higher than the state rate of 37.1%. Nationally, 35.7% of adults hold at least a bachelor's degree. The high school graduation rate (or equivalent) is 98.4%. Notably, 19.9% of adults hold a graduate or professional degree, indicating a highly educated workforce.
Data Sources & Methodology
All demographic data for Seacliff, California is sourced from the U.S. Census Bureau's American Community Survey (ACS) 2020–2024 5-Year Estimates. The ACS collects data from approximately 3.5 million households annually and pools five years of responses so that even small communities can be measured, though the margin of error widens as the population falls. Comparisons are made against California state averages and national averages calculated from the same dataset. Rankings reflect the city's position among all 1,570 Census-designated places in California. Read more about how these figures are produced on our methodology page, or visit data.census.gov for official data.
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Frequently Asked Questions
What is the population of Seacliff, California?
Seacliff, California has a population of 3,299 according to the most recent U.S. Census ACS 5-Year Estimates.
What is the median household income in Seacliff, CA?
The median household income in Seacliff is $130,385, which is 61% higher than the national median of $80,734.
What is the poverty rate in Seacliff, CA?
The poverty rate in Seacliff is 5.5%. This means approximately 182 residents live below the federal poverty line.
What is the racial makeup of Seacliff, California?
Seacliff's population is 65.0% White, 0.7% Black, 16.1% Hispanic/Latino, and 3.3% Asian.
What is the median home value in Seacliff, CA?
The median home value in Seacliff is $1,143,600. The home-value-to-income ratio is 8.8x.
How educated is Seacliff, California?
45.1% of adults (25+) in Seacliff hold a bachelor's degree or higher, and 19.9% hold a graduate or professional degree.