# Population (1 January) — Solothurn (NUTS-3 CH023)

Population (1 January) — Solothurn (NUTS-3 CH023) was 289,792 persons in 2025, up 1.0% from 2024.
That is the highest reading since the series began in 1990.
Over the past ten years it has ranged from 263,719 persons (2015) to 289,792 persons (2025), averaging 276,018 persons.

- Source agency: Eurostat (Statistical Office of the European Union)
- Makrognosis code: `CH-023.POP.A.NSA`
- Frequency: annual
- Units: persons
- Coverage: 1990-01-01 to 2025-01-01 (36 observations)
- Page: https://makrognosis.robomacro.com/data/switzerland/population-1-january-solothurn-nuts-3-ch023

## Recent data

| Period | Value |
|---|---:|
| 2025 | 289,792 persons |
| 2024 | 286,844 persons |
| 2023 | 282,408 persons |
| 2022 | 280,245 persons |
| 2021 | 277,462 persons |
| 2020 | 275,247 persons |
| 2019 | 273,194 persons |
| 2018 | 271,432 persons |
| 2017 | 269,441 persons |
| 2016 | 266,418 persons |
| 2015 | 263,719 persons |
| 2014 | 261,437 persons |
| 2013 | 259,283 persons |
| 2012 | 256,990 persons |
| 2011 | 255,284 persons |
| 2010 | 252,748 persons |
| 2009 | 251,830 persons |
| 2008 | 250,240 persons |
| 2007 | 248,613 persons |
| 2006 | 247,937 persons |
| 2005 | 247,379 persons |
| 2004 | 246,807 persons |
| 2003 | 246,280 persons |
| 2002 | 245,264 persons |

## API

```
curl -H "X-API-Key: $MAKROGNOSIS_KEY" \
  "https://makrognosis.robomacro.com/v1/series/CH-023.POP.A.NSA"

# Python
import requests
r = requests.get("https://makrognosis.robomacro.com/v1/series/CH-023.POP.A.NSA",
                 headers={"X-API-Key": KEY})
obs = r.json()["observations"]
```