For 2026, Marin County’s area median income (AMI) is $200,800 for a four-person household, according to the California Department of Housing and Community Development (HCD).
Marin shares this figure with San Francisco and San Mateo counties. That’s because HUD calculates it for the combined San Francisco metro area, not for Marin alone.
2026 income limits for a four-person household:
| Category | Income limit |
|---|---|
| Extremely low income | $63,050 |
| Very low income | $105,050 |
| Low income | $168,100 |
| Median income (100% AMI) | $200,800 |
| Moderate income | $240,950 |
For a one-person household, the median is $140,550 and the low-income limit is $117,700.
Marin’s low-income limit is higher than 80% of AMI. That’s because HUD raises the limits in high-cost areas.
These limits determine eligibility for deed-restricted affordable housing, including Marin’s Below Market Rate (BMR) ownership program. Eligibility depends on household size and total gross income, and the Marin Housing Authority also counts part of large asset holdings. Apply using the current published tables, which update every spring.
