---
entity_id: city:lu:statec_commune:1107
entity_type: city
name: Mertert
country_code: LU
country: Luxembourg
slug: mertert
canonical_url: https://immigrationdb.com/cities/lu/mertert/
json_url: https://immigrationdb.com/data/cities/lu/mertert.json
markdown_url: https://immigrationdb.com/data/cities/lu/mertert.md
mcp_uri: immigrationdb://city/lu/mertert
snapshot_id: approved-static-8975a8c3d87026ab
generated_at: 2026-09-14
last_verified: 2026-09-06
fact_count: 11
language_location_count: 0
employment_location_count: 0
city_intent_block_count: 1
usefulness_tier: answer_linked
indexable: true
metric_dictionary_url: https://immigrationdb.com/data/metrics.json
license_url: https://immigrationdb.com/about/copyright/
citation_schema: immigrationdb-citation-v1
citation_canonical_url: https://immigrationdb.com/cities/lu/mertert/
citation_title: "Mertert, Luxembourg: jobs, air quality, climate, population"
citation_author: ImmigrationDB
citation_publisher: ImmigrationDB
citation_snapshot_id: approved-static-8975a8c3d87026ab
citation_version: approved-static-8975a8c3d87026ab
citation_retrieval_date: 2026-09-14
citation_build_date: 2026-09-14
citation_license_url: https://creativecommons.org/licenses/by/4.0/
---

# Mertert

Mertert is a city in Luxembourg. In 2025, the unemployment rate was 6.42%.

## Answers

Deterministic answers rendered from this page's published values. The JSON twin carries the machine-readable answer objects.

### How many people live in Mertert?

The published population was 5,774 people in July 2026.

- City-scope resident count. Density, foreign-resident counts and the country-wide figure are separate rows in the table below.
- Value: 5,774 people · Period: July 2026
- Claims: claim-ae8a54e6e3cc
### Is the air quality good in Mertert?

The annual PM2.5 mean is 5 µg/m³ (2024) — within the WHO 2021 guideline.

- Annual mean at the measuring site(s) serving the city; current-day readings differ.
- Value: 5 µg/m³ · Period: 2024
- Claims: claim-435f5579536b
### What is the unemployment rate in Mertert?

The unemployment rate is about 6.4 % (2025).

- Value: 6.4 % · Period: 2025
- Claims: claim-1559f67341da
## Facts

| Metric | metric_id | Value | Scope | Observed | Verified | Freshness | Lane | Source |
| --- | --- | --- | --- | --- | --- | --- | --- | --- |
| Foreign residents | `foreign_population_total` | 1,799 people | place | 2021-12-31 | 2026-08-08 | stale | verified | [1] |
| Population | `population_total` | 5,774 people | city | 2026-08-05 | 2026-08-05 | fresh | verified | [2] |
| Unemployment rate | `unemployment_total_percent` | 6.42 % | city | 2025-12-31 | 2026-07-27 | aging | verified | [3] |
| PM2.5 — annual mean | `air_quality_pm25_annual_ug_m3` | 5 µg/m³ | city | 2024-12-31 | 2026-08-26 | stale | supplemental | [4] |
| Average daytime high by month | `climate_monthly_high_c` | Jan 5 · Feb 6.6 · Mar 11.5 · Apr 16.1 · May 20.3 · Jun 23.5 · Jul 25.7 · Aug 24.4 · Sep 20.7 · Oct 15 · Nov 9.1 · Dec 5.6 °C | nearest_station | 1991-12-31 | 2026-08-06 | stale | verified | [5] |
| Average night-time low by month | `climate_monthly_low_c` | Jan -0.4 · Feb -0.3 · Mar 1.8 · Apr 4.2 · May 8.1 · Jun 11.3 · Jul 13.2 · Aug 12.7 · Sep 9.5 · Oct 6.6 · Nov 3.2 · Dec 0.7 °C | nearest_station | 1991-12-31 | 2026-08-06 | stale | verified | [6] |
| Average temperature by month | `climate_monthly_mean_c` | Jan 3.1 · Feb 3.7 · Mar 6.8 · Apr 10.3 · May 14 · Jun 17.1 · Jul 18.9 · Aug 18.3 · Sep 14.4 · Oct 10.5 · Nov 6.6 · Dec 3.8 °C | nearest_station | 1991-12-31 | 2026-08-06 | stale | verified | [7] |
| Average precipitation by month | `climate_monthly_precip_mm` | Jan 67.3 · Feb 56.3 · Mar 49.1 · Apr 45.2 · May 63.6 · Jun 65 · Jul 65.6 · Aug 61 · Sep 58 · Oct 67.7 · Nov 65.9 · Dec 85 mm | nearest_station | 1991-12-31 | 2026-08-06 | stale | verified | [8] |
| Average sunshine by month | `climate_monthly_sunshine_h` | Jan 48.1 · Feb 70.3 · Mar 130.9 · Apr 187.1 · May 213.8 · Jun 224.7 · Jul 235.1 · Aug 215.3 · Sep 159.8 · Oct 96.3 · Nov 44.8 · Dec 38.7 hours | nearest_station | 1991-12-31 | 2026-08-06 | stale | verified | [9] |
| City area | `city_area_km2` | 15.42 km² | place | 2024-12-31 | 2026-08-08 | stale | verified | [10] |
| Population density | `population_density_per_km2` | 372.8 people/km² | place | 2026-08-08 | 2026-08-08 | fresh | verified | [11] |

Every row keeps the value, unit, geographic scope, observation date, verification date and the numbered source below. A missing metric means the city does not publish it; nothing is imputed.

## Language courses and integration

- [Biergerpakt / Pacte citoyen](https://guichet.public.lu/en/citoyens/citoyennete/vivre-ensemble/pacte-citoyen.html) — Civic Orientation · Integration Department and CAI · Luxembourgish, German, French · checked 2026-08-10
- [Introductory Luxembourgish courses](https://men.public.lu/en/systeme-educatif/formation-adultes/integration-nationalite/cours-examen.html) — State Language Course · Service de la formation des adultes, Ministère de l’Éducation nationale · Luxembourgish · checked 2026-08-10
- [Linguistic integration courses](https://men.public.lu/en/systeme-educatif/formation-adultes/integration-nationalite/integration.html) — State Language Course · Service de la formation des adultes, Ministère de l’Éducation nationale · French, Luxembourgish · checked 2026-08-10

These are country-level programmes, not proof of a course location in this city.

## Public employment service

- [Agence pour le développement de l'emploi](https://adem.public.lu/en/demandeurs-demploi/sinscrire-a-ladem.html) — Job Search, Registration, Career Counselling, Training, Unemployment Claim

This is a country-level service, not proof of a physical office in this city.

## Healthcare access

Migrants can receive medical care in Mertert when the country-wide insurance or residence conditions are met. City capacity facts do not determine personal eligibility.

- Public healthcare access for foreign residents: Yes — [official source](https://cns.public.lu/en/assure/droits-demarches/bases-bonnes-pratiques/affiliation.html)

## Country-wide rules

Visa, benefit, tax and healthcare eligibility rules are published on the [Luxembourg country page](https://immigrationdb.com/countries/luxembourg/).

## International community

Citizenship, country of birth, language and ancestry are kept as separate source-native dimensions.

### Country of birth

- Total: 4,760 (100.0%)
- Other EU-27 Member State: 1,432 (30.1%)
- Foreign: 2,085 (43.8%)
- Luxembourg: 2,662 (55.9%)
- Foreign (non EU-27): 653 (13.7%)
- Other: 1 (0.0%)
- Not stated: 12 (0.3%)
- Population universe: Population by municipality, 2021 Census, total sex; source-native country/place-of-birth categories
- Period: 2021 Census
- Source: https://lustat.statec.lu/rest/data/LU1,DSD_CENSUS_GROUP7_10@DF_B1626,1.0/all

### Citizenship

- Total: 4,760 (100.0%)
- Foreign (EU-27): 1,404 (29.5%)
- Foreign: 1,799 (37.8%)
- Luxembourg: 2,958 (62.1%)
- Foreign (non EU-27): 395 (8.3%)
- Stateless: 2 (0.0%)
- Not stated: 1 (0.0%)
- Population universe: Population by municipality, 2021 Census, total sex; source-native citizenship status categories
- Period: 2021 Census
- Source: https://lustat.statec.lu/rest/data/LU1,DSD_CENSUS_GROUP7_10@DF_B1625,1.0/all

### Language spoken at home

- German: 0 (9.5%)
- English: 0 (2.7%)
- French: 0 (5.6%)
- Luxembourgish: 0 (58.6%)
- Portuguese: 0 (12.1%)
- Population universe: Valid single-answer responses to the question which language the respondent thinks in and knows best; municipal numeric denominator not published
- Period: 2021 Census
- Source: https://statistiques.public.lu/en/publications/recensement/diversite-linguistique.html

## Sources

1. STATEC/LUSTAT official census statistics — Official source — https://lustat.statec.lu/rest/data/LU1,DSD_CENSUS_GROUP7_10@DF_B1625,/all?dimensionAtObservation=AllDimensions
2. RNPP / Government of Luxembourg — Official source — https://download.data.public.lu/resources/registre-national-des-personnes-physiques-rnpp-population-par-commune-population-per-municipality/20260706-115130/01-07-2026-rnrpp-population-commune.csv
3. Emploi et chômage par canton et commune — DF_X026, C6 Unemployment rate (in %), 2025 — Official source — https://lustat.statec.lu/vis?df[ds]=ds-release&vw=tb&df[ag]=LU1&df[id]=DF_X026
4. air.discomap.eea.europa.eu — Official source — https://air.discomap.eea.europa.eu/arcgis/rest/services/AirQuality/AQ_Statistics_WM/MapServer/0/query
5. NOAA National Centers for Environmental Information / WMO — Official source — https://www.nodc.noaa.gov/archive/arc0216/0253808/1.1/data/0-data/data-composite-primary-parameters/wmo_normals_9120_TMAX.csv
6. NOAA National Centers for Environmental Information / WMO — Official source — https://www.nodc.noaa.gov/archive/arc0216/0253808/1.1/data/0-data/data-composite-primary-parameters/wmo_normals_9120_TMIN.csv
7. NOAA National Centers for Environmental Information / WMO — Official source — https://www.nodc.noaa.gov/archive/arc0216/0253808/1.1/data/0-data/data-composite-primary-parameters/wmo_normals_9120_TAVG.csv
8. NOAA National Centers for Environmental Information / WMO — Official source — https://www.nodc.noaa.gov/archive/arc0216/0253808/1.1/data/0-data/data-composite-primary-parameters/wmo_normals_9120_PRCP.csv
9. NOAA National Centers for Environmental Information / WMO — Official source — https://www.nodc.noaa.gov/archive/arc0216/0253808/1.1/data/0-data/data-composite-primary-parameters/wmo_normals_9120_TSUN.csv
10. Eurostat GISCO LAU official distribution — Official source — https://gisco-services.ec.europa.eu/distribution/v2/lau/csv/LAU_RG_01M_2024_3035.csv
11. STATEC/LUSTAT official statistics — Official source — https://lustat.statec.lu/rest/data/LU1,DF_X020,/all?dimensionAtObservation=AllDimensions

## Cite

This citation identifies the ImmigrationDB compilation/page. Underlying source publishers and datasets retain their own terms; inspect the Sources section and cite those records separately.

### APA

ImmigrationDB. (2026, September 14). Mertert, Luxembourg: jobs, air quality, climate, population [ImmigrationDB compilation; snapshot approved-static-8975a8c3d87026ab; version approved-static-8975a8c3d87026ab]. ImmigrationDB. https://immigrationdb.com/cities/lu/mertert/ Retrieved 2026-09-14. Compilation license: CC BY 4.0, https://creativecommons.org/licenses/by/4.0/

### BibTeX

```bibtex
@misc{immigrationdb_immigrationdb_mertert-luxembourg-jobs-air-quality-climate-population_d14147b8d1d1,
  author = {ImmigrationDB},
  title = {Mertert, Luxembourg: jobs, air quality, climate, population},
  publisher = {ImmigrationDB},
  year = {2026},
  date = {2026-09-14},
  version = {approved-static-8975a8c3d87026ab},
  snapshot = {approved-static-8975a8c3d87026ab},
  url = {https://immigrationdb.com/cities/lu/mertert/},
  note = {Retrieved 2026-09-14. ImmigrationDB compilation. Compilation license: CC BY 4.0, https://creativecommons.org/licenses/by/4.0/},
}
```

### Markdown

[Mertert, Luxembourg: jobs, air quality, climate, population](https://immigrationdb.com/cities/lu/mertert/) — ImmigrationDB; ImmigrationDB; snapshot approved-static-8975a8c3d87026ab; version approved-static-8975a8c3d87026ab; retrieved 2026-09-14; built 2026-09-14.

- Citation schema: `immigrationdb-citation-v1`
- Canonical URL: https://immigrationdb.com/cities/lu/mertert/
- Title: Mertert, Luxembourg: jobs, air quality, climate, population
- Author: ImmigrationDB
- Publisher: ImmigrationDB
- Snapshot: `approved-static-8975a8c3d87026ab`
- Version: `approved-static-8975a8c3d87026ab`
- Retrieved: 2026-09-14
- Built: 2026-09-14
- Compilation license: CC BY 4.0 (https://creativecommons.org/licenses/by/4.0/)

## Data

- HTML: https://immigrationdb.com/cities/lu/mertert/
- JSON: https://immigrationdb.com/data/cities/lu/mertert.json
- Markdown: https://immigrationdb.com/data/cities/lu/mertert.md
- MCP resource: immigrationdb://city/lu/mertert
- Metric dictionary: https://immigrationdb.com/data/metrics.json
- City shard index: https://immigrationdb.com/data/cities/index.json
- Release catalog: https://immigrationdb.com/data/catalog.json