---
entity_id: city:pl:slug:kolo
entity_type: city
name: "Koło"
country_code: PL
country: Poland
slug: kolo
canonical_url: https://immigrationdb.com/cities/pl/kolo/
json_url: https://immigrationdb.com/data/cities/pl/kolo.json
markdown_url: https://immigrationdb.com/data/cities/pl/kolo.md
mcp_uri: immigrationdb://city/pl/kolo
snapshot_id: approved-static-bb6d69cd3c074ae2
generated_at: 2026-08-04
last_verified: 2026-07-27
fact_count: 10
metric_dictionary_url: https://immigrationdb.com/data/metrics.json
license_url: https://immigrationdb.com/about/copyright/
---

# Koło

Koło is a city in Poland. Its population was 19,078 at the end of 2024. For Koło, the unemployment rate was 3.8% at the end of 2025.

## Population

The city covered 14 km² in 2024. Population density was 1,363 people per km² in 2024.

## Climate

Monthly mean temperatures were −1°C in January and 19.4°C in July. Monthly precipitation was 28.6 mm in January and 80.7 mm in July.

## Immigration

The foreign population count was 13 in March 2021.

## Facts

| Metric | metric_id | Value | Scope | Observed | Verified | Freshness | Lane | Source |
| --- | --- | --- | --- | --- | --- | --- | --- | --- |
| Foreign residents | `foreign_population_total` | 13 people | city | 2021-03-31 | 2026-07-15 | stale | verified | [1] |
| Population | `population_total` | 19,078 people | gmina | 2024-12-31 | 2026-07-14 | stale | verified | [2] |
| Unemployment rate | `unemployment_total_percent` | 3.8 % | city | 2025-12-31 | 2026-07-27 | aging | verified | [3] |
| Average daytime high by month | `climate_monthly_high_c` | Jan 1.5 · Feb 3.2 · Mar 7.7 · Apr 14.6 · May 19.5 · Jun 22.8 · Jul 25.1 · Aug 24.9 · Sep 19.2 · Oct 13.2 · Nov 6.9 · Dec 2.8 °C | city | 2020-12-31 | 2026-07-27 | stale | verified | [4] |
| Average night-time low by month | `climate_monthly_low_c` | Jan -3.3 · Feb -2.5 · Mar 0.1 · Apr 4.2 · May 8.6 · Jun 12 · Jul 14.1 · Aug 14 · Sep 9.8 · Oct 5.7 · Nov 1.8 · Dec -1.8 °C | city | 2020-12-31 | 2026-07-27 | stale | verified | [5] |
| Average temperature by month | `climate_monthly_mean_c` | Jan -1 · Feb 0.1 · Mar 3.5 · Apr 9.2 · May 13.9 · Jun 17.3 · Jul 19.4 · Aug 19.1 · Sep 14.1 · Oct 9 · Nov 4.1 · Dec 0.4 °C | city | 2020-12-31 | 2026-07-27 | stale | verified | [6] |
| Average precipitation by month | `climate_monthly_precip_mm` | Jan 28.6 · Feb 26.3 · Mar 34.8 · Apr 28.9 · May 57.1 · Jun 57.6 · Jul 80.7 · Aug 57.4 · Sep 49.8 · Oct 37.4 · Nov 35.2 · Dec 32.2 mm | city | 2020-12-31 | 2026-07-27 | stale | verified | [7] |
| Average sunshine by month | `climate_monthly_sunshine_h` | Jan 49.1 · Feb 69.4 · Mar 127.9 · Apr 197.6 · May 250.9 · Jun 247.9 · Jul 254.2 · Aug 247.3 · Sep 162.2 · Oct 110.5 · Nov 49.1 · Dec 38.8 hours | city | 2020-12-31 | 2026-07-27 | stale | verified | [8] |
| City area | `city_area_km2` | 14 km2 | city | 2024-12-31 | 2026-07-15 | stale | verified | [9] |
| Population density | `population_density_per_km2` | 1,363 people/km² | city | 2024-12-31 | 2026-07-15 | stale | verified | [10] |

Every row keeps the value, unit, geographic scope, observation date, verification date and the numbered source below. A missing metric means the city does not publish it; nothing is imputed.

## Sources

1. GUS BDL / NSP 2021 non-Polish citizenship variable 1653367 — Official source — https://bdl.stat.gov.pl/api/v1/data/by-unit/{teryt_gmina}?var-id=1653367&year=2021
2. source-133726d316d9 — Official source — https://bdl.stat.gov.pl/api/v1/data/by-unit/023015809011?var-id=72305&year=2024
3. Local Data Bank — Share of registered unemployed persons in the working-age population by sex, total, 2025 — Official source — https://bdl.stat.gov.pl/api/v1/data/by-variable/79214?lang=en&unit-level=6&year=2025
4. IMGW-PIB climate normal — mean monthly maximum air temperature, KOŁO, 1991-2020 — Official source — https://klimat.imgw.pl/pl/climate-normals/TMAX_AVE
5. IMGW-PIB climate normal — mean monthly minimum air temperature, KOŁO, 1991-2020 — Official source — https://klimat.imgw.pl/pl/climate-normals/TMIN_AVE
6. IMGW-PIB climate normal — mean monthly air temperature, KOŁO, 1991-2020 — Official source — https://klimat.imgw.pl/pl/climate-normals/TSR_AVE
7. IMGW-PIB climate normal — monthly total precipitation, KOŁO, 1991-2020 — Official source — https://klimat.imgw.pl/pl/climate-normals/OPAD_SUMA
8. IMGW-PIB climate normal — mean monthly sunshine duration, KOŁO, 1991-2020 — Official source — https://klimat.imgw.pl/pl/climate-normals/USL
9. GUS BDL / GUGiK area variable 2018 — Official source — https://bdl.stat.gov.pl/api/v1/data/by-unit/{teryt_gmina}?var-id=2018&year=2024
10. Reproducible gmina density for Koło: population_total_2024 / official area_2024, rounded to the metric contract precision 0. — Official source — https://bdl.stat.gov.pl/api/v1/data/by-unit/023015809011?var-id=2018&var-id=72305&year=2024

## Cite

ImmigrationDB. "Koło, Poland." Snapshot approved-static-bb6d69cd3c074ae2, last verified 2026-07-27. https://immigrationdb.com/cities/pl/kolo/

Reuse requires the direct source URL, the observation date and a link back to the ImmigrationDB page: https://immigrationdb.com/about/copyright/

## Data

- HTML: https://immigrationdb.com/cities/pl/kolo/
- JSON: https://immigrationdb.com/data/cities/pl/kolo.json
- Markdown: https://immigrationdb.com/data/cities/pl/kolo.md
- MCP resource: immigrationdb://city/pl/kolo
- Metric dictionary: https://immigrationdb.com/data/metrics.json
- All published city facts, one row each: https://immigrationdb.com/data/facts.ndjson.gz
- Release catalog: https://immigrationdb.com/data/catalog.json