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Largest city in the Oise department: the 2026 ranking

The 680 towns of the Oise department (60) ranked by population, area and density, based on the official INSEE population figures in force in 2026.

The largest city in the Oise department is Beauvais, with 56,934 inhabitants (ranked 110th in France by population). The largest town by area is Compiègne (53 km²). The most densely populated is Creil, with 3,294 inhabitants per km². At the other end of the ranking, Gouy-les-Groseillers has only 16 inhabitants.

The Oise department has 846,757 inhabitants over 5,861 km², a density of 144 inhabitants per km², close to the national average (110 per km²). It accounts for 13.9% of the population of Hauts-de-France, the region it has belonged to since the 2016 reform (formerly Picardie): see the ranking of the largest cities in Hauts-de-France.

The 20 largest cities in the Oise department by population

# Town Population km² per km² France rank
1 Beauvais 56,934 33 1,709 110th
2 Compiègne 41,774 53 787 188th
3 Creil 36,533 11 3,294 231st
4 Nogent-sur-Oise 22,177 7.5 2,973 424th
5 Senlis 15,711 24 653 638th
6 Crépy-en-Valois 14,600 16 897 693rd
7 Montataire 14,387 11 1,350 702nd
8 Méru 14,049 23 615 719th
9 Noyon 13,173 18 732 772nd
10 Pont-Sainte-Maxence 12,496 15 847 812th
11 Chantilly 10,810 16 668 963rd
12 Clermont 10,726 5.8 1,846 969th
13 Chambly 10,085 13 784 1,048th
14 Lamorlaye 9,327 15 608 1,148th
15 Gouvieux 9,286 23 399 1,156th
16 Margny-lès-Compiègne 8,854 6.7 1,329 1,210th
17 Liancourt 6,855 4.8 1,443 1,611th
18 Villers-Saint-Paul 6,567 4.9 1,332 1,711th
19 Saint-Just-en-Chaussée 5,869 15 400 1,934th
20 Lacroix-Saint-Ouen 5,590 21 268 2,049th

Largest towns by area in the Oise department

# Town Population km² per km² France rank
1 Compiègne 41,774 53 787 1,016th
2 Beauvais 56,934 33 1,709 3,153rd
3 Fontaine-Chaalis 340 33 10 3,191st
4 La Neuville-en-Hez 978 28 34 4,333rd
5 Auneuil 2,934 27 107 4,710th
6 Morienval 1,057 26 41 5,257th
7 Saint-Jean-aux-Bois 350 25 14 5,460th
8 Senlis 15,711 24 653 5,930th
9 Bornel 4,899 24 206 6,077th
10 Gouvieux 9,286 23 399 6,305th

Most densely populated towns in the Oise department

# Town Population km² per km² France rank
1 Creil 36,533 11 3,294 249th
2 Nogent-sur-Oise 22,177 7.5 2,973 292nd
3 Clermont 10,726 5.8 1,846 492nd
4 Beauvais 56,934 33 1,709 541st
5 Liancourt 6,855 4.8 1,443 647th
6 Montataire 14,387 11 1,350 691st
7 Villers-Saint-Paul 6,567 4.9 1,332 704th
8 Margny-lès-Compiègne 8,854 6.7 1,329 707th
9 Thourotte 4,530 4.4 1,034 902nd
10 Crépy-en-Valois 14,600 16 897 1,060th

All towns in the Oise department (680)

INSEE total population in parentheses. Each town page gives its area, density, national and departmental rankings, and neighboring towns.

Other departments in Hauts-de-France

Aisne (02) Nord (59) Pas-de-Calais (62) Somme (80) All departments

Sources: INSEE, official population figures in force on January 1, 2026 (total population); land area: IGN / Observatoire des territoires. Rankings computed across the 34,858 communes in the database.

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