# Population — St. Clair, IL (persons)

Population — St. Clair, IL (persons) was 251,149 persons in 2024, down 0.4% from 2023.
That is the lowest reading since the series began in 1969.
Over the past ten years it has ranged from 251,149 persons (2024) to 265,532 persons (2014), averaging 258,398 persons.

- Source agency: U.S. Bureau of Economic Analysis (Regional Economic Accounts)
- Makrognosis code: `US-IL-17163.POP.A.NSA`
- Frequency: annual
- Units: persons
- Coverage: 1969-01-01 to 2024-01-01 (56 observations)
- Page: https://makrognosis.robomacro.com/data/united-states/population-st-clair-il

## Recent data

| Period | Value |
|---|---:|
| 2024 | 251,149 persons |
| 2023 | 252,094 persons |
| 2022 | 252,947 persons |
| 2021 | 255,210 persons |
| 2020 | 257,070 persons |
| 2019 | 258,737 persons |
| 2018 | 260,604 persons |
| 2017 | 261,978 persons |
| 2016 | 262,703 persons |
| 2015 | 264,355 persons |
| 2014 | 265,532 persons |
| 2013 | 266,530 persons |
| 2012 | 268,468 persons |
| 2011 | 269,941 persons |
| 2010 | 270,337 persons |
| 2009 | 268,489 persons |
| 2008 | 266,518 persons |
| 2007 | 264,764 persons |
| 2006 | 263,445 persons |
| 2005 | 261,255 persons |
| 2004 | 260,214 persons |
| 2003 | 258,448 persons |
| 2002 | 257,952 persons |
| 2001 | 256,540 persons |

## API

```
curl -H "X-API-Key: $MAKROGNOSIS_KEY" \
  "https://makrognosis.robomacro.com/v1/series/US-IL-17163.POP.A.NSA"

# Python
import requests
r = requests.get("https://makrognosis.robomacro.com/v1/series/US-IL-17163.POP.A.NSA",
                 headers={"X-API-Key": KEY})
obs = r.json()["observations"]
```