# Labor Force: San Mateo County, CA (U)

Labor Force: San Mateo County, CA (U) was up 0.07% year on year in September 2025, compared with −0.4% in August 2025.
The level stood at 410,701 thousands.
That is the highest reading since April 2023.
Over the past ten years it has ranged from −8.1% (Nov 2020) to 6.9% (Dec 2021), averaging −0.4%.

- Source agency: U.S. Bureau of Labor Statistics (flat files)
- Makrognosis code: `US-CA-06081.LF.M.NSA`
- Frequency: monthly
- Units: thousands
- Coverage: 1990-01-01 to 2026-09-01 (440 observations)
- Page: https://makrognosis.robomacro.com/data/united-states/labor-force-san-mateo-county-ca-u

## Recent data

| Period | Value | Y/Y % |
|---|---:|---:|
| September 2026 | 410,701 thousands | — |
| August 2026 | 408,066 thousands | — |
| July 2026 | 408,709 thousands | — |
| June 2026 | 406,251 thousands | — |
| May 2026 | 404,663 thousands | — |
| April 2026 | 407,625 thousands | — |
| March 2026 | 410,764 thousands | — |
| February 2026 | 412,424 thousands | — |
| January 2026 | 407,876 thousands | — |
| December 2025 | 413,844 thousands | — |
| November 2025 | 414,848 thousands | — |
| September 2025 | 417,515 thousands | 0.07 |
| August 2025 | 414,429 thousands | −0.4 |
| July 2025 | 416,716 thousands | −0.6 |
| June 2025 | 412,201 thousands | −0.6 |
| May 2025 | 410,219 thousands | −0.8 |
| April 2025 | 411,093 thousands | −0.8 |
| March 2025 | 417,024 thousands | −0.9 |
| February 2025 | 415,542 thousands | −0.9 |
| January 2025 | 413,515 thousands | −0.9 |
| December 2024 | 412,745 thousands | −1.4 |
| November 2024 | 412,880 thousands | −2.0 |
| October 2024 | 413,322 thousands | −1.7 |
| September 2024 | 417,223 thousands | −1.2 |

## API

```
curl -H "X-API-Key: $MAKROGNOSIS_KEY" \
  "https://makrognosis.robomacro.com/v1/series/US-CA-06081.LF.M.NSA"

# Python
import requests
r = requests.get("https://makrognosis.robomacro.com/v1/series/US-CA-06081.LF.M.NSA",
                 headers={"X-API-Key": KEY})
obs = r.json()["observations"]
```