In Hallu, 1.5% of households have no car, fewer than in 99% of compared French towns
With households headed by a retired person at 23%, Hallu is behind 89% of compared French towns on that count. At the 2023 Census, 143 people lived locally, in 63 households. About one in seven: that is how common single-parent households are in Hallu (15%). Residents aged 65 and over are rarer here than in 72% of compared French towns.
Throughout this page, the Somme median and the France median are the median of compared communes (those with an overall grade), each figure its own median. Source: INSEE, census 2023.
What stands out about the people of Hallu
Fewer residents than in 2012
Hallu had 178 residents at the 2012 census and 143 in 2023, down 20%: slower growth than in 99% of compared French towns. Population ↓
Empty homes
The census found 9 homes empty (12%): for sale, to let, awaiting work or simply unused. Homes & cars ↓
Written from INSEE’s census 2023 on this page, against compared French towns.
Hallu changed by −20% from 2012 to 2023, slower than 99% of compared French towns
Residents at INSEE’s last three censuses, each recast in the 2026 commune boundaries. France has no yearly estimate by commune between censuses.
2012 to 2023
2017 to 2023
Between 2012 and 2017 the population moved −1%, then −19% to 2023. Over those years, the median Somme town changed −3% and the median compared French town +5%.
Hallu is older than 65% of compared French towns: a median age of 46.3
Shares of residents by age at the 2023 census.
Age groups · share of residents
Median age of the 3,798 compared French towns
■ Hallu 46.3. The median compared French town: 44.
Nothing unusual on residents aged 15 to 24: 11%, close to the figure in the typical compared French town.
Women and men · all residents
49% women, 51% men
About 104 men for every 100 women. Median share of women: Somme 52.5%, France 51.8%.
One-person households: 31%, a lower share than 73% of compared French towns
A household is everyone who shares a main home (résidence principale). Household types come from INSEE’s fuller sample of a quarter of census forms.
Against the Somme median and the France median
Living alone · share
There are 2.3 people in the average household. Few places have so few couples with children: 23% here, fewer than in just over three fifths of compared French towns. One-person households make up 35% in the typical compared French town.
Hallu sits above 86% of compared French towns for empty homes (12%)
Every home the census counted: main residences, second homes and occasional dwellings (INSEE counts them together), and empty homes. Owning and renting are on Cost of living.
All homes · share of homes
Type of home
Cars per household · share of households
The figure for second homes is 3.3% in Hallu and 2.1% in the typical compared French town. Empty homes: 6.7% in the typical compared French town, for comparison. Of all households, 9.1% moved in during the last two years and 20% have stayed three decades or more. Flats are rarer here than in 99% of compared French towns.
Half above, half below €26,230 a year in standard of living
The standard of living (niveau de vie) is a household’s disposable income after taxes and benefits, divided by its consumption units (UC) to allow for its size and make-up: 1 for the first adult, 0.5 for each other person 14 or older, 0.3 for each child under 14.
Medians of compared communes. Source: INSEE, Filosofi 2023.
Per consumption unit, half of residents live on more than €26,230 a year: higher than in 53% of compared French towns.
Households headed by a manager or professional make up 7.7% in Hallu, less than in 62% of compared French towns
Households by the socio-professional group (PCS) of their reference person, INSEE’s own categories. Jobs and commuting are on the Work & commute page.
Households by reference person’s group · share of households
15% of households are headed by a manual worker (typical compared French town: 14%). Households headed by a manager or professional: 9.4% in the typical compared French town, for comparison.
Each household is counted once, by the occupation of its reference person (usually the oldest working adult).
A lower share of immigrants than 85% of compared French towns, at 2.7%
INSEE publishes two measures, which overlap but aren’t the same. Neither is the UK’s “born abroad”.
Share of residents · census 2023
Immigrant (immigré)
Born abroad, not French at birth. Someone stays an immigrant after becoming French. A French citizen born abroad (for example in Algeria before 1962) is not one.
Foreign national (étranger)
Not a French citizen today, wherever born. A child born in France to foreign parents can be a foreign national without being an immigrant.
In Hallu, 2% of residents are foreign nationals, beside 4.3% in the typical compared French town. The wider picture: 6.5% of residents are immigrants in the typical compared French town.
INSEE publishes no country of birth or ethnicity by commune in these tables, and the census doesn’t ask about religion.
A smaller share of married residents than 85% of compared French towns: 37%
Residents 15 and over by how they live: the census asks both the legal status and whether people live as a couple.
Residents 15 and over · share
Set against 25% in the typical compared French town, nearly a quarter of residents 15 and over are single in Hallu. The benchmark for married residents in the typical compared French town: 43%.
18% of adults out of school hold a higher-education qualification, below 92% of compared French towns
Highest diploma of residents 15 and over who have left education, in French terms: the levels don’t map one-to-one to UK or U.S. ones.
Highest diploma · 15 and over, out of education
Adults with no qualification: 25%, above 76% of compared French towns. In the typical compared French town, graduates of higher education come to 30%.
Ranked by age, 18th oldest of 41 French towns this size
The 40 compared French towns nearest in population, by median age. Hover for each one’s second homes and immigrants; click for its page.
Ages run from 37.2 in Villejust to 62.3 in Prayssac.
Among its 6 nearest neighbors, 2 are older than Hallu
The nearest towns of 2,500 or more, colored by median age. Source: INSEE, census 2023.
| Town | Median age | 65+ | Second homes | Immigrants |
|---|---|---|---|---|
| Hallu | 46.3 | 19% | 3.3% | 2.7% |
| Rosières-en-Santerre 2,894 · 4.2 mi | 46.9 | 27% | 0.9% | 2.3% |
| Roye 5,833 · 6.4 mi | 42.8 | 22% | 2.1% | 3.7% |
| Péronne 7,090 · 11.6 mi | 48.6 | 28% | 1.4% | 4.3% |
| Villers-Bretonneux 4,647 · 13.2 mi | 41 | 18% | 0.6% | 1.7% |
| Ham 4,378 · 13.2 mi | 45.8 | 25% | 1% | 2.8% |
| Moreuil 3,936 · 13.8 mi | 43.9 | 23% | 3% | 1.1% |
Health, work, housing and schools
What this data can and can’t tell you
- Census 2023. INSEE’s census is a rolling survey: a fifth of small communes each year, 8% of homes in large ones each year. “2023” pools the surveys of 2021 to 2025, so the figures describe the town around 2023, not on one day.
- Medians of compared communes. The comparisons are the median of the département’s compared communes and of France’s (those with an overall grade), each figure its own median: not the total for the département or for France, which large cities pull towards their own figures.
- Immigrants and foreign nationals. INSEE’s two measures: an immigrant was born abroad without French nationality; a foreign national isn’t French today. Neither is a count of people born abroad, which INSEE doesn’t publish by commune.
- Second homes. Homes used for holidays or weekends, with occasional dwellings (kept for work, for example), which INSEE counts together. Their owners are counted where they live, not here.
- Standard of living. INSEE’s Filosofi: disposable income per consumption unit, from tax and benefit files, 2023. The poverty rate is the share of residents below 60% of France’s median. Not published for the smallest communes.
- What France doesn’t ask. The French census asks nothing about ethnicity, religion, language or health, so this page has no such section.
Questions about who lives in Hallu
What is the population of Hallu?
143 at INSEE’s 2023 census, 20% fewer than in 2012 (178).
How old are Hallu’s residents?
The median age is 46.3, older than 65% of compared French towns. 19% are under 18 and 19% 65 or older.
How many second homes are there in Hallu?
2, with occasional dwellings: 3.3% of all homes, against 2.1% for the median compared French town.
How many immigrants live in Hallu?
INSEE counts 4 immigrants (born abroad, not French at birth), 2.7% of residents, and 3 foreign nationals (2%). The medians of compared French towns are 6.5% and 4.3%.
What is the median income in Hallu?
€26,230 a year per consumption unit in 2023 (median of compared French towns €25,970). Source: INSEE, Filosofi.
Sources: INSEE, census 2023 (population, ages, households, homes, marital status, diplomas, immigrants, foreign nationals, employment), 2026 geography · INSEE, Filosofi 2023 (standard of living, poverty) · IGN Admin Express (boundaries) · Medians and percentiles: TownRatings, over compared French towns, updated November 4, 2026. Under the Licence Ouverte / Open Licence 2.0 (Etalab).
Contains public sector information under the Licence Ouverte / Open Licence 2.0 (Etalab): INSEE, DGFiP, the Interior Ministry’s statistics service (SSMSI), the Ministry of Education (DEPP), the Health Ministry’s statistics service (DREES) and the Housing Ministry (Carte des loyers). Commune boundaries: IGN Admin Express.