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Living · portrait by municipality

Living in Lasne: what the figures say

Wallonia · Walloon Brabant · official figures

In brief

  • Lasne has 14,198 inhabitants over 53.3 km², that is 266 per km².
  • The number of residents has barely changed in five years.
  • Police record 42.7 offences per 1,000 residents here. That is 15% less than a typical Belgian municipality (50.1).
  • Median income: €33,326 per tax return (half earn more, half earn less). That is +67% compared with Belgium.
  • On average, 1,651 hours of sunshine and 885 mm of rain a year (RMI, 1991 to 2020). A typical Belgian municipality: 1,703 h and 837 mm.

Sources: Statbel, Federal Police and OpenStreetMap. Immolytics computes the scores out of 100.

Wallonia

Where Lasne is in Belgium

The municipality scored out of 100

We count stops, schools, shops and parks.

50/100overall score
44/100public transport
67/100schools
32/100shops and services
82/100green space
34/100everything on foot

What does a home cost in Lasne?

Sale prices at the notary, published in September 2026. The median price splits sales in two: half above, half below.

€675,000house, median price
20.3years of income to pay for a house
The full budget to buy in LasneThe full price page

Who lives here?

14,198Population-0.3 % over five years
266Population densityinhabitants per km²
2,274HouseholdsAverage household size : 6.2
10.2 %Foreign population

Age distribution

Income and jobs

€33,326Median income+66.6 % National comparison
3,078Enterprises216.8 per 1,000 inhabitants

Tax pressure : 28.0 %

How many offences do the police record here?

The number of offences police recorded, per 1,000 residents.

Offences recorded by the police in 2024

42.7

recorded offences per 1,000 residents

Near median
Lasne
42.7
Belgian median
50.1
Comparable density
43.7

This figure counts the offences recorded on the municipality's territory, divided by the number of residents. Towns that receive commuters, shoppers and visitors every day come out higher, because offences against them are counted although they do not live there. It is therefore not a measure of the risk to a resident, which is why we do not give a safety score.

Source: Belgian Federal Police, police crime statistics, offences recorded in 2024 by place of offence. Population: Statbel.

Schools and transport

The schools and stops actually in the municipality.

Schools

School map

Total schools

9

School density

6.3

per 10,000 pop.

Primary / kindergarten
9
Secondary
0
Higher education
0

Source: FASE 2026 (Wallonia-Brussels Federation) and Onderwijs Vlaanderen

Public Transport

Total stops

86

Weekday departures

2,587

Transit density

60.6

stops per 10,000 pop.

Bus stops
86

Source: GTFS Belgium, SNCB, De Lijn, TEC, STIB (CC BY 4.0)

Climate of Lasne

RMI normals for 1991-2020, each set against the median Belgian municipality.

10.6 °Cmean annual temperaturemedian municipality: 10.8 °C
1,651 hhours of sunshine per yearmedian municipality: 1,703 h
885 mmprecipitation per yearmedian municipality: 837 mm
136rainy days (at least 1 mm)median municipality: 134
55frost daysmedian municipality: 51
7days at 30 °C or moremedian municipality: 7

Last frost on average on 14 April, first frost on 4 November; growing season from 17 May to 5 October.

Source: RMI (Royal Meteorological Institute), climate statistics of Belgian municipalities, reference period 1991-2020. RMI sheet for the municipality (PDF, in French)

What about nearby municipalities?

For each one: the median house price and the overall score.

Braine-l'Alleud€420,00061/100Wavre€342,50068/100Ottignies-Louvain-la-Neuve€465,00070/100Waterloo€426,50060/100Nivelles€357,50070/100Tubize€330,00048/100

More about Lasne

Frequently asked questions

Lasne has 14,198 residents, or 266 per km². In five years, the population changed by -0.3% (Statbel).
The federal police recorded 42.7 offences per 1,000 residents here. A typical Belgian municipality has 50.1. The figure covers everything, from bike theft to assault. It describes the whole municipality, not your street.
The median house price is €675,000. For an apartment: not published. These are sales at the notary (Statbel, September 2026). The 'Buying in Lasne' page adds registration duties and fees.
The municipality has 9 schools: 9 primary and 0 secondary (Community registers). The full list, school by school, is higher up this page.

Sources: Statbel for population, households, incomes and prices. Federal Police for safety, Community registers for schools. Transport operators' timetables for buses and trains, OpenStreetMap for the scores. These are figures, not an opinion.

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