Cities near Seongnam-si

Seongnam-si is a city of 914,832 inhabitants in South Korea. The most populous cities near Seongnam-si within 100 km are Seoul, Incheon, Suwon. Distances are measured as the crow flies.

Use the map and table below to explore the cities near Seongnam-si.

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Latitude: 37.4386° Longitude: 127.1378° Population: 914,832 Timezone: Asia/Seoul
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Nearby cities 52 cities found

Sorted by population, from largest to smallest. Distances are measured as the crow flies.

City Country Distance Population
Seoul South Korea 20.0 km 10,349,312
Incheon South Korea 38.2 km 3,015,482
Suwon South Korea 20.0 km 1,234,582
Goyang-si South Korea 36.0 km 1,061,752
Cheongju-si South Korea 94.4 km 852,147
Bucheon-si South Korea 32.0 km 850,731
Cheonan South Korea 70.3 km 658,831
Hwaseong-si South Korea 38.3 km 640,890
Ansan-si South Korea 30.7 km 623,256
Anyang-si South Korea 19.3 km 595,644
Uijeongbu-si South Korea 34.6 km 479,141
Sejong South Korea 95.1 km 394,630
Pyeongtaek South Korea 49.5 km 364,694
Gwangmyeong South Korea 24.3 km 357,545
Kaesŏng North Korea 78.3 km 338,155
Wŏnju South Korea 72.0 km 332,849
Gunpo South Korea 18.6 km 286,485
Chuncheon South Korea 71.5 km 284,855
Hanam South Korea 12.8 km 254,415
Osan South Korea 32.4 km 238,788
Chungju South Korea 86.9 km 209,483
Gimpo-si South Korea 42.6 km 203,391
Icheon-si South Korea 32.2 km 196,230
Guri-si South Korea 17.8 km 195,236
Yangju South Korea 44.4 km 179,923
Paech’ŏn-ŭp North Korea 96.0 km 159,825
Siheungdong South Korea 20.1 km 128,142
Yeoju South Korea 46.6 km 111,897
Hwado South Korea 28.1 km 106,358
Asan South Korea 73.8 km 97,749
Wabu South Korea 18.3 km 96,775
Namyangju South Korea 23.0 km 90,798
Yangp'yŏng South Korea 31.7 km 83,367
Gwangju South Korea 11.0 km 81,780
Hongch’ŏn South Korea 71.7 km 75,251
Seosan South Korea 95.0 km 74,208
Anseong South Korea 49.0 km 69,255
Uiwang South Korea 18.7 km 63,040
Pubal South Korea 36.6 km 63,026
Chinch'ŏn South Korea 70.1 km 60,964
Gapyeong South Korea 54.6 km 55,415
Koesan South Korea 90.9 km 44,461
Munsan South Korea 56.2 km 43,208
Cheorwon South Korea 86.0 km 40,646
Yesan South Korea 88.6 km 39,409
Jungpyong South Korea 82.7 km 37,207
Tangjin South Korea 75.4 km 32,778
Seonghwan South Korea 58.2 km 29,239
Ganghwa-gun South Korea 66.9 km 25,535
Taesal-li South Korea 79.8 km 23,149
Hwacheon South Korea 89.6 km 22,965
Yongsan-dong South Korea 18.0 km 12,612

What is this tool?

The Cities Near tool lets you explore all populated places within a chosen radius of any city in the world. Enter a city, pick a radius (50, 100, 200, or 500 km), and get an instant interactive map and list — sorted from most to least populous.

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How does the distance calculation work?

Distances are calculated using the Haversine formula, which gives the great-circle distance between two points on a sphere — the shortest path over the Earth's surface. The result is accurate to within a few kilometres for most city pairs. Note that the Haversine formula assumes a perfectly spherical Earth; the true Earth is slightly flattened, so very long distances may differ by up to 0.5% from the exact geodetic distance.

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The tool offers radii of 50, 100, 200, and 500 km. For reference, a 500 km radius around Paris would cover most of France plus parts of Belgium, Germany, and Switzerland. Use the minimum population filter to narrow down the results to cities of the size you care about.

How is distance measured — straight line or road distance?

The distance shown is the straight-line great-circle distance (as the crow flies), not the road distance. Road distances are always longer due to routes, terrain, and urban layouts. This tool is intended for geographic exploration, not navigation.

What data source is used?

City data comes from the GeoNames geographical database, which aggregates official government sources worldwide. It includes name, coordinates, population, country, and timezone for over 70,000 populated places. Coordinates are accurate to 4–6 decimal places.


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