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🌆 Largest Cities in Mongolia

Cities of Mongolia with more than 15,000 inhabitants, ranked by population (GeoNames).

📅 2026📏 people24 entries🇲🇳 See all of this country’s rankings →
Each tile’s area is its share of the combined total of 1,560,912 (24 entries). Stronger colour means a higher rank.
1
Ulan BatorUlaanbaatar
844,818
2
ErdenetOrhon
97,814
3
DarhanDarhan Uul
83,883
4
ChoibalsanEast Aimak
44,835
5
NalayhUlaanbaatar
39,579
6
MörönKhövsgöl Province
39,404
7
BayanhongorBayankhongor
30,931
8
UlaangomUvs Province
30,092
9
KhovdHovd
29,800
10
ArvayheerÖvörhangay
29,420
11
ÖlgiiBayan-Ölgii Province
28,400
12
BogdÖvörhangay
27,924
13
DalandzadgadÖmnögovĭ
24,863
14
SühbaatarSelenge Province
22,741
15
UndurkhaanHentiy
22,741
16
TsetserlegArkhangai Province
21,620
17
SaynshandEast Gobi Aymag
19,891
18
DzüünharaaSelenge Province
18,830
19
Baruun-UrtSühbaatar
18,190
20
AltaiGovi-Altai Province
17,617
21
BulganBulgan
17,348
22
DzuunmodCentral Aimak
16,953
23
ZuunmodCentral Aimak
16,953
24
UliastayDzabkhan
16,265

Highlights

Within Mongolia, Ulan Bator ranks first in 2026 with 844,818, followed by Erdenet (97,814) and Darhan (83,883).

Ulan Bator is 8.6 times higher than Erdenet, the runner-up.

Across 24 entries, values run from 844,818 (Ulan Bator) to 16,265 (Uliastay), with a median of 26,394.

Source: GeoNames, cities with more than 15,000 inhabitants, 2026. Unit: people.

Source: GeoNames, cities with more than 15,000 inhabitants · CC BY 4.0 (GeoNames) · fetched Oct 14, 2026 — GeoNames aggregates census and estimate figures, so the reference year varies by city, and a few figures cover the metropolitan area rather than the city proper.