# Population — Colorado

Population — Colorado was 6,012,561 persons in 2025, up 0.4% from 2024.
That is the highest reading since the series began in 1929.
Over the past ten years it has ranged from 5,441,452 persons (2015) to 6,012,561 persons (2025), averaging 5,759,110 persons.

- Source agency: U.S. Bureau of Economic Analysis (Regional Economic Accounts)
- Makrognosis code: `US-CO.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-colorado

## Recent data

| Period | Value |
|---|---:|
| 2025 | 6,012,561 persons |
| 2024 | 5,988,502 persons |
| 2023 | 5,912,240 persons |
| 2022 | 5,853,355 persons |
| 2021 | 5,814,368 persons |
| 2020 | 5,786,873 persons |
| 2019 | 5,735,797 persons |
| 2018 | 5,676,918 persons |
| 2017 | 5,599,635 persons |
| 2016 | 5,528,510 persons |
| 2015 | 5,441,452 persons |
| 2014 | 5,342,212 persons |
| 2013 | 5,262,801 persons |
| 2012 | 5,188,139 persons |
| 2011 | 5,118,837 persons |
| 2010 | 5,046,928 persons |
| 2009 | 4,972,195 persons |
| 2008 | 4,889,730 persons |
| 2007 | 4,803,868 persons |
| 2006 | 4,720,423 persons |
| 2005 | 4,631,888 persons |
| 2004 | 4,575,013 persons |
| 2003 | 4,528,732 persons |
| 2002 | 4,490,406 persons |

## API

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

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