Location map: Hallau
Municipality · Bezirk Unterklettgau · Schaffhausen

Hallau: population and statistics

Hallau has a population of 2,600 (2025) across 15.3 km², or 170 people per km². It ranks 820 of 2,115 municipalities by population. Its population is growing: +25.5% between 2015 and 2025.

  • 2,600 residents
  • 15.3 km²
  • 170 people/km²
  • 421 m

Key points

Among the 26 municipalities in Schaffhausen, Hallau ranks No. 7 by population.

District heating: 28.0% in Hallau, compared with an average of 8.4% in Schaffhausen and 7.3% nationally.

Dwellings in buildings built before 1946: 47.7% in Hallau, compared with an average of 29.6% in Schaffhausen and 22.4% nationally.

A 1 kWp solar panel tilted at 37° generates about 1,171 kWh a year here.

Hallau in numbers

Population
2,600
ranked 820 of 2,115
+25.5%over 10 years
2015–2025
Population density
170people/km²
ranked 1,134 of 1,806
Area
15.3km²
ranked 594 of 2,110
Elevation
421m
ranked 1,738 of 2,114
District heating
28.0%
ranked 42 of 1,806
Dwellings in buildings built before 1946
47.7%
ranked 144 of 1,806
Share of jobs in services
45.1%
ranked 1,474 of 1,804
Share of people aged 65 and over
24.0%
ranked 391 of 1,811

Where is Hallau?

Population of Hallau over time

2,0002,2002,4002,600201520172019202120232025
Population, 2015–2025

Hallau had 2,072 residents in 2015 and 2,600 in 2025.

YearPopulation
20202,180
20212,307
20222,335
20232,389
20242,423
20252,600

Did you know?

All indicators for Hallau

Value for the municipality, then the regional average and the national median (for counts: regional and national totals). The gauge places the municipality between the lowest and highest value in the country.

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

Population

IndicatorHallauSchaffhausenNationalPosition?Rank
Share of people aged 65 and over (2025)24.0%22.5%20.7%ranked 391 of 1,811

Housing

IndicatorHallauSchaffhausenNationalPosition?Rank
Dwellings (2026)1,34946,8784,927,050ranked 845 of 2,108
Dwellings in buildings built before 1946 (2026)47.7%29.6%23.3%ranked 144 of 1,806
Dwellings in buildings built since 2001 (2026)26.5%21.7%25.3%ranked 826 of 1,806
Share of single-family houses among residential buildings (2026)75.7%66.0%69.5%ranked 491 of 1,806

Energy

IndicatorHallauSchaffhausenNationalPosition?Rank
Oil or gas heating systems (2026)41.0%66.9%53.5%ranked 1,350 of 1,806
Heat pumps as main heating (2026)11.0%12.8%13.7%ranked 1,135 of 1,806
Wood heating systems (2026)15.7%8.2%12.4%ranked 731 of 1,806
District heating (2026)28.0%8.4%1.4%ranked 42 of 1,806
Photovoltaic installations (2026)1743,365329,600ranked 627 of 2,108
Installed photovoltaic capacity per 1,000 inhabitants (2026)2,120 kW950.6 kW1,134 kWranked 181 of 1,806
Rooftop solar electricity potential (2026)30.9 GWh/year704.9 GWh/year64,783 GWh/yearranked 650 of 2,114
Rooftop solar potential per inhabitant (2026)11,869 kWh/inh.7,825 kWh/inh.9,356 kWh/inh.ranked 533 of 1,810

Economy

IndicatorHallauSchaffhausenNationalPosition?Rank
Establishments (2024)2146,748728,011ranked 722 of 2,112
Entities listed in the commercial register (2026)1826,434762,757ranked 795 of 2,115
Entities in the commercial register per 1,000 inhabitants (2026)70.071.464.9ranked 705 of 1,811
Share of limited companies (AG, GmbH) among registered entities (2026)63.2%66.0%65.7%ranked 1,129 of 1,808
Share of sole proprietorships among registered entities (2026)29.7%27.9%29.0%ranked 839 of 1,808

Employment

IndicatorHallauSchaffhausenNationalPosition?Rank
Jobs (2024)1,13049,1475,679,518ranked 764 of 2,111
Jobs per 1,000 inhabitants (2024)434.6545.6362.9ranked 650 of 1,810
Share of jobs in services (2024)45.1%65.5%63.6%ranked 1,474 of 1,804
Share of jobs in industry and construction (2024)36.0%28.6%24.2%ranked 401 of 1,776

Society

IndicatorHallauSchaffhausenNationalPosition?Rank
Share of foreign nationals (2025)21.7%29.5%18.9%ranked 698 of 1,811

Sunshine and temperatures: Hallau

Annual solar output
1,171kWh
for 1 kWp tilted at 37°
Warmest month
19.5°C
July
Coldest month
0.6°C
January
Most productive month
140kWh
July

0100200300−10°0°10°20°30°JanFebMarAprMayJunJulAugSepOctNovDec
Monthly sunshine (kWh/m²)Average temperature (°C)

Frequently asked questions

What is the population of Hallau?

Hallau has 2,600 residents (2025), ranking 820 of 2,115 municipalities.

How big is Hallau?

Hallau covers 15.3 km², with a density of 170 people per km².

Is the population of Hallau growing?

Between 2015 and 2025, the population of Hallau went from 2,072 to 2,600, a change of +25.5%.

Where is Hallau?

Hallau is in Schaffhausen. It belongs to Bezirk Unterklettgau (district). Latitude 47.697, longitude 8.458.

District heating: what is the figure for Hallau?

In Hallau, “District heating” stands at 28.0% (2026), ranking 42 of 1,806 municipalities; the national median is 1.4%.

Dwellings in buildings built before 1946: what is the figure for Hallau?

In Hallau, “Dwellings in buildings built before 1946” stands at 47.7% (2026), ranking 144 of 1,806 municipalities; the national median is 23.3%.

How much electricity does a solar panel produce in Hallau?

In Hallau, a 1 kWp south-facing system tilted at 37° produces about 1,171 kWh a year.

Which municipalities border Hallau?

The nearest to Hallau are Oberhallau (1.8 km), Gächlingen (3.2 km), Neunkirch (3.2 km), Wilchingen (3.4 km), Trasadingen (3.8 km).