# Population — California

Population — California was 39,355,309 persons in 2025, unchanged from 2024.
That is the lowest reading since 2023.
Over the past ten years it has ranged from 38,966,939 persons (2015) to 39,547,995 persons (2019), averaging 39,309,708 persons.

- Source agency: U.S. Bureau of Economic Analysis (Regional Economic Accounts)
- Makrognosis code: `US-CA.POP.A.NSA`
- Frequency: annual
- Units: persons
- Coverage: 1929-01-01 to 2025-01-01 (97 observations)
- Page: https://makrognosis.robomacro.com/data/united-states/population-california

## Recent data

| Period | Value |
|---|---:|
| 2025 | 39,355,309 persons |
| 2024 | 39,364,774 persons |
| 2023 | 39,181,667 persons |
| 2022 | 39,125,347 persons |
| 2021 | 39,152,927 persons |
| 2020 | 39,527,808 persons |
| 2019 | 39,547,995 persons |
| 2018 | 39,535,920 persons |
| 2017 | 39,424,315 persons |
| 2016 | 39,223,789 persons |
| 2015 | 38,966,939 persons |
| 2014 | 38,637,421 persons |
| 2013 | 38,292,557 persons |
| 2012 | 37,971,412 persons |
| 2011 | 37,651,212 persons |
| 2010 | 37,322,523 persons |
| 2009 | 36,961,229 persons |
| 2008 | 36,604,337 persons |
| 2007 | 36,250,311 persons |
| 2006 | 36,021,202 persons |
| 2005 | 35,827,943 persons |
| 2004 | 35,574,576 persons |
| 2003 | 35,253,159 persons |
| 2002 | 34,871,843 persons |

## API

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

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