Postcode area · Birr · Aargau

5242 Birr (Birr): key figures

5242 Birr (postcode area in Birr) has 7,472 residents in 2025 across 10.2 km², or 736 people per km². Population: +13.0% between 2015 and 2025.

  • 7,472 residents
  • 10.2 km²
  • 736 people/km²

5242 Birr in numbers

Population
7,472
ranked 286 of 2,275
+13.0%between 2015 and 2025
2015–2025
Population density
736people/km²
ranked 497 of 2,275
Area
10.2km²
ranked 1,138 of 3,168
Share of foreign nationals
39.9%
ranked 132 of 2,040
Dwellings
3,382
ranked 332 of 3,164
Residential buildings
1,218
ranked 307 of 3,160
Dwellings in buildings built before 1946
8.2%
ranked 2,981 of 3,164

Key points

Nationally, 5242 Birr ranks No. 286 of 2,275 postcode areas.

Population of 5242 Birr over time

6,5006,7507,0007,2507,5002015202020232025
Population, 2015–2025

5242 Birr had 6,615 residents in 2015 and 7,472 in 2025.

YearPopulation
20156,615
20206,923
20237,199
20257,472

All indicators for 5242 Birr

Next to the value for 5242 Birr: all postcode areas of Birr, then of the whole country (totals for counts, weighted averages for rates).

5242 BirrNational medianHover over or tap a bar to see what it shows.

Housing

Indicator5242 BirrBirrSwitzerlandPosition?Rank in the areaRank in the country
Dwellings (2026)3,382––ranked 332 of 3,164
Residential buildings (2026)1,218––ranked 307 of 3,160
Dwellings in buildings built before 1946 (2026)8.2%8.2%23.2%ranked 2,981 of 3,164
Dwellings in buildings built since 2001 (2026)30.6%30.6%23.6%ranked 761 of 3,164
Share of detached houses among residential buildings (2026)72.9%72.9%63.5%ranked 1,259 of 3,160

Energy

Indicator5242 BirrBirrSwitzerlandPosition?Rank in the areaRank in the country
Oil or gas heating systems (2026)77.8%77.8%56.2%ranked 225 of 3,160
Heat pumps as main heating (2026)6.9%6.9%16.2%ranked 2,426 of 3,160
Wood heating systems (2026)4.6%4.6%13.5%ranked 2,625 of 3,160
District heating (2026)2.2%2.2%5.6%ranked 1,061 of 3,160

Society

Indicator5242 BirrBirrSwitzerlandPosition?Rank in the areaRank in the country
Share of foreign nationals (2025)39.9%39.9%29.8%ranked 132 of 2,040

Where is 5242 Birr?

Frequently asked questions

What is the population of 5242 Birr (Birr)?

5242 Birr has 7,472 residents in 2025. It covers 10.2 km², or 736 people per km².

Where is 5242 Birr?

5242 Birr (postcode area) is part of Birr, in Aargau.

What is the value of “Share of foreign nationals” in 5242 Birr?

Share of foreign nationals: 39.9% (2025), ranked 132 of 2,040 postcode areas in the country.

What is the value of “Dwellings” in 5242 Birr?

Dwellings: 3,382 (2026), ranked 332 of 3,164 postcode areas in the country.