# San Mateo County

### Summary

40.2% share of renter households  
46.5% share of low-income households  
46.1% share of rent-burdened households

### Renter population data

#### Renters vs homeowners

| Households            | % share  |
|-----------------------|----------|
| Renter households      | 106,611  |
| Homeowner households   | 158,281  |
| Total households       | 264,892  |

#### Low-income renter households

| Households                    | % share  |
|-------------------------------|----------|
| Extremely low-income (≤30% AMI) | 17,987   |
| Very low-income (31-50% AMI)  | 17,809   |
| Low-income (51-80% AMI)       | 13,824   |
| All low-income households (<80% AMI) | 49,620   |

#### Rent-burdened households

| Share of income spent on rent | Households | % share  |
|-------------------------------|------------|----------|
| Moderately rent-burdened      | 22,822     | 21.4%    |
| 30.0–34.9%                   | 7,920      | 7.4%     |
| 35.0–39.9%                   | 5,786      | 5.4%     |
| 40.0-49.9%                   | 9,116      | 8.6%     |
| Severely rent-burdened       | 26,280     | 24.7%    |
| ≥50.0%                        | 26,280     | 24.7%    |
| All rent-burdened households  | 49,102     | 46.1%    |

### Affordable housing shortage

#### Rent vs median household income

|                | Amount ($) |  
|----------------|------------|
| Median household income in 2010 | 60,691     |
| Median household income in 2021 | 102,764    |
| Increase (2010–2021)           | 69.3%      |
| Median rent in 2010            | 1,181      |
| Median rent in 2021            | 2,466      |
| Increase (2010–2021)           | 108.8%     |

#### Affordable housing stock

| Supply (current stock) | Demand (total units needed) | Shortage    | Supply/Demand Ratio |
|------------------------|---------------------------|-------------|---------------------|
| 20,314                 | 27,513                    | 13,556      | 73.8%               |

### Builders Patch blog

#### Read our blog & report summaries on affordable housing & tech

- **[Kittle Property Group selects Builders Patch's AI platform to streamline affordable housing development and operations](/content/housingcount/counties/san-mateo-county-california#/index.html)** \ November 17, 2025  
- **[Bridging innovation and community: reflections from the 2025 Montana Housing Partnership Conference](/content/housingcount/counties/san-mateo-county-california#/index.html)** \ May 29, 2025  
- **[New York City C-PACE Financing: PACE Funding Now Available for New Construction](/content/housingcount/counties/san-mateo-county-california#/index.html)** \ August 30, 2024

## HUD National Low Income Housing Tax Credit (LIHTC) Database

| Name                                 | Type                           | Year | Market Rate | Low-income | Income ceiling | LIHTC allocation | Amount        |
|--------------------------------------|--------------------------------|------|-------------|------------|----------------|------------------|---------------|
| HIGHBRIDGE OVERLOOK                  | New construction               | 2014 | N/A         | N/A        | 10452          | N/A              | $1,804,887    |
| IRVINGTON FAMILY APTS                | New construction               | 2007 | N/A         | N/A        | 94538          | N/A              | $1,378,252    |
| HILLTOP VILLAGE                      | New construction - Acquisition and Rehab | 2012 | N/A | N/A | 32208 | N/A | $504,385   |
| HUNTINGTON RESERVE                   | N/A                            | 2006 | N/A         | N/A        | 32773          | N/A              | $424,046      |
| HOLT + HAMILTON FAMILY APARTMENTS    | New construction               | 2016 | N/A         | N/A        | 91768          | N/A              | $1,557,010    |
| INTERVALE GARDENS LLC                | New construction               | 2008 | N/A         | N/A        | 10459          | N/A              | $659,087      |
| HOMES OF RENAISSANCE PRESERVE II     | New construction               | 2012 | N/A         | N/A        | 33905          | N/A              | $1,510,000    |
| (additional rows omitted for brevity) |                                 |      |             |            |                |                  |               |