Hiermont ranks below 99% of compared French towns on flats: 1.2%
Half of Hiermont’s residents are over 48.5, older than in 77% of compared French towns. At the 2023 Census, 150 people lived locally, in 67 households. The census found that 1.5% of households rent social housing (HLM) in the town. The figure for households without a car is 16% in Hiermont and 11% in the typical compared French town.
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 Hiermont
One home in seven is a second home
The census counted 13 second homes and occasional dwellings in Hiermont, 15% of its 85 homes: higher than in 91% of compared French towns. 100% of them are houses. Their owners live elsewhere, so they aren’t in the population figures on this page. Homes & cars ↓
Written from INSEE’s census 2023 on this page, against compared French towns.
15% of homes are second homes, more than in 91% of compared French towns
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
One household in six has no car (median compared French town: 11%). Fewer empty homes than in 62% of compared French towns: 5.9%. Second homes: 2.1% in the typical compared French town, for comparison.
Hiermont grew +6% from 2012 to 2023, faster than 57% 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
In Hiermont, 26% of residents are 65 or over, more than in 71% of compared French towns
Shares of residents by age at the 2023 census.
Age groups · share of residents
Median age of the 3,798 compared French towns
■ Hiermont 48.5. The median compared French town: 44.
About one in nine: that is how common residents aged 15 to 24 are in Hiermont (11%). As a reference point, 22% of residents are 65 or over in the typical compared French town.
Women and men · all residents
52% women, 48% men
About 92 men for every 100 women. Median share of women: Somme 52.5%, France 51.8%. Women live longer than men, so towns with many older residents have more women.
31% of households are one person living alone, fewer than in 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
The figure for couples with children is 23% in Hiermont and 25% in the typical compared French town. Single-parent households are rarer here than in 99% of compared French towns. In the typical compared French town, just over a third of households are one person living alone. There are 2.2 people in the average household.
Per consumption unit, the median standard of living is €20,740 a year
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.
Living standards centre on €20,740 a year per consumption unit: lower than in 95% of compared French towns.
Households headed by a manager or professional make up 7.7% in Hiermont, 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
Against a figure of 14% in the typical compared French town, the share of households headed by a manual worker in Hiermont comes in at 15%. The wider picture: nearly one in ten households are headed by a manager or professional in the typical compared French town. Across Hiermont, 31% of households are headed by a retired person.
Each household is counted once, by the occupation of its reference person (usually the oldest working adult).
Fewer immigrants than 99% of compared French towns: 0.7%
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.
Where 4.3% of residents are foreign nationals in the typical compared French town, Hiermont has 0.7%. Set beside that, 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.
53% of residents 15 and over are married, more than in 98% of compared French towns
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
28% of residents 15 and over are single (typical compared French town: 25%). Married residents: 43% in the typical compared French town, for comparison.
Fewer graduates of higher education than 97% of compared French towns: 15%
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
The share of adults with no qualification tops 69% of compared French towns: 23%. In the typical compared French town, 30% of adults out of school hold a higher-education qualification.
Of 41 French towns its size (150 to 2,582 people), the 15th oldest
The 40 compared French towns nearest in population, by median age. Hover for each one’s second homes and immigrants; click for its page.
The youngest is Villejust (37.2), the oldest Prayssac (62.3).
Around Hiermont, 3 of 6 towns have a higher median age
The nearest towns of 2,500 or more, colored by median age. Source: INSEE, census 2023.
| Town | Median age | 65+ | Second homes | Immigrants |
|---|---|---|---|---|
| Hiermont | 48.5 | 26% | 15% | 0.7% |
| Auxi-le-Château 2,547 · 3 mi | 50.3 | 31% | 3.5% | 1.4% |
| Frévent 3,259 · 10.8 mi | 49 | 27% | 1.7% | 1% |
| Doullens 5,751 · 12 mi | 45.7 | 25% | 1.9% | 4.1% |
| Abbeville 22,395 · 12.3 mi | 47.1 | 25% | 1.5% | 2.7% |
| Flixecourt 3,221 · 12.5 mi | 43.5 | 22% | 1.7% | 1.7% |
| Hesdin-la-Forêt 4,480 · 12.5 mi | 52.1 | 33% | 3.5% | 2.4% |
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 Hiermont
What is the population of Hiermont?
150 at INSEE’s 2023 census, 6% more than in 2012 (141).
How old are Hiermont’s residents?
The median age is 48.5, older than 77% of compared French towns. 20% are under 18 and 26% 65 or older.
How many second homes are there in Hiermont?
13, with occasional dwellings: 15% of all homes, against 2.1% for the median compared French town.
How many immigrants live in Hiermont?
INSEE counts 1 immigrants (born abroad, not French at birth), 0.7% of residents, and 1 foreign nationals (0.7%). The medians of compared French towns are 6.5% and 4.3%.
What is the median income in Hiermont?
€20,740 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 9, 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.