| Name | Population | Altitude | Latitude | Longitude | 
| Obae : | 
 | 18 m | 39°12'58.0" N | 125°57'54.0" E | 
| Obongni : | 
 | 
 | 39°33'11.2" N | 125°56'45.6" E | 
| Obong : | 
 | 
 | 39°32'8.2" N | 125°57'25.2" E | 
| Ochon : | 
 | 
 | 38°59'24.0" N | 125°13'55.2" E | 
| Odong : | 
 | 
 | 39°10'0.1" N | 125°25'58.8" E | 
| Odui : | 
 | 536 m | 39°34'22.1" N | 126°36'57.6" E | 
| Odungol : | 
 | 
 | 39°36'0.0" N | 125°39'0.0" E | 
| Oduri : | 
 | 
 | 39°11'57.1" N | 125°32'13.2" E | 
| Oechang : | 
 | 
 | 39°33'20.9" N | 126°34'4.8" E | 
| Oedaedong : | 
 | 
 | 38°56'15.0" N | 126°24'3.6" E | 
| Oedongni : | 
 | 
 | 39°34'40.1" N | 126°4'22.8" E | 
| Oegajangdong : | 
 | 
 | 39°4'27.1" N | 125°26'52.8" E | 
| Oekajangdong : | 
 | 
 | 39°4'27.1" N | 125°26'52.8" E | 
| Oepyong : | 
 | 
 | 39°27'38.2" N | 126°33'25.2" E | 
| Oesari : | 
 | 
 | 39°24'46.1" N | 125°32'60.0" E | 
| Oesochang : | 
 | 
 | 39°9'40.0" N | 125°27'36.0" E | 
| Oesonghyon : | 
 | 10 m | 39°15'28.1" N | 126°7'19.2" E | 
| Oesongni : | 
 | 
 | 39°15'41.0" N | 125°57'57.6" E | 
| Oeson : | 
 | 200 m | 38°55'18.8" N | 126°27'57.6" E | 
| Oesori : | 
 | 
 | 39°40'59.9" N | 125°52'1.2" E | 
| Oeuri : | 
 | 
 | 39°11'57.1" N | 125°32'13.2" E | 
| Ogodong : | 
 | 
 | 39°18'29.2" N | 125°34'4.8" E | 
| Ogucham : | 
 | 
 | 39°43'49.1" N | 126°3'7.2" E | 
| Ogumni : | 
 | 
 | 39°8'44.9" N | 125°37'51.6" E | 
| Ogyori : | 
 | 
 | 39°20'11.0" N | 125°28'26.4" E | 
| Ogyuri : | 
 | 240 m | 39°51'34.9" N | 126°22'48.0" E | 
| Ohadong : | 
 | 
 | 39°32'60.0" N | 125°57'0.0" E | 
| Ohwari : | 
 | 
 | 39°7'0.1" N | 125°20'60.0" E | 
| Oingol : | 
 | 
 | 39°31'5.9" N | 126°26'52.8" E | 
| Ojungni : | 
 | 
 | 39°17'60.0" N | 125°47'60.0" E | 
| Okchoncham : | 
 | 
 | 39°50'16.1" N | 126°0'39.6" E | 
| Okchondong : | 
 | 
 | 39°15'22.0" N | 125°53'6.0" E | 
| Okchongni : | 
 | 
 | 39°9'56.9" N | 126°15'25.2" E | 
| Okha : | 
 | 251 m | 38°58'39.0" N | 126°24'28.8" E | 
| Okkol : | 
 | 
 | 39°37'50.2" N | 126°15'57.6" E | 
| Oksangdong : | 
 | 
 | 39°52'0.1" N | 126°21'14.4" E | 
| Omnamugol : | 
 | 
 | 38°51'19.1" N | 125°12'39.6" E | 
| Omsudong : | 
 | 
 | 38°51'19.1" N | 125°12'39.6" E | 
| Onchangni : | 
 | 
 | 39°58'41.9" N | 126°45'43.2" E | 
| Onchon : | 
 | 
 | 39°12'6.1" N | 126°49'58.8" E | 
| Onchonup : | 
 | 
 | 38°52'49.1" N | 125°13'30.0" E | 
| Ondammal : | 
 | 396 m | 39°29'20.0" N | 126°37'44.4" E | 
| Ongdong : | 
 | 
 | 39°11'56.0" N | 126°6'3.6" E | 
| Ongjom : | 
 | 55 m | 39°5'29.0" N | 125°25'26.4" E | 
| Ongsongdong : | 
 | 
 | 39°21'20.2" N | 125°26'38.4" E | 
| Ongyodo : | 
 | 
 | 39°20'57.8" N | 126°15'39.6" E | 
| Onhungni : | 
 | 
 | 39°31'14.9" N | 125°41'31.2" E | 
| Onjongni : | 
 | 
 | 38°52'32.2" N | 125°13'12.0" E | 
| Onjong : | 
 | 52 m | 39°19'8.0" N | 126°4'30.0" E | 
| Onsangni : | 
 | 
 | 39°29'37.0" N | 125°41'31.2" E | 
| Onseiri : | 
 | 
 | 39°12'6.1" N | 126°49'58.8" E | 
| Onsenri : | 
 | 
 | 38°52'32.2" N | 125°13'12.0" E | 
| Onyangni : | 
 | 
 | 39°58'0.1" N | 126°46'1.2" E | 
| Onyori : | 
 | 
 | 39°58'0.1" N | 126°46'1.2" E | 
| Oodong : | 
 | 
 | 39°4'0.1" N | 125°28'58.8" E | 
| Opari : | 
 | 
 | 39°19'50.9" N | 125°38'13.2" E | 
| Oparodongjagu : | 
 | 
 | 39°19'50.9" N | 125°38'13.2" E | 
| Oribau : | 
 | 193 m | 39°15'10.1" N | 126°23'2.4" E | 
| Oribawi : | 
 | 193 m | 39°15'10.1" N | 126°23'2.4" E | 
| Oridong : | 
 | 
 | 39°3'42.1" N | 125°22'51.6" E | 
| Orimakkol : | 
 | 
 | 39°49'59.9" N | 126°21'36.0" E | 
| Ori : | 
 | 
 | 39°2'26.9" N | 125°30'10.8" E | 
| Oryangdong : | 
 | 
 | 39°17'40.9" N | 125°25'44.4" E | 
| Oryongdong : | 
 | 
 | 39°17'40.9" N | 125°25'44.4" E | 
| Oryongni : | 
 | 
 | 39°28'54.1" N | 125°36'36.0" E | 
| Oryugae : | 
 | 394 m | 39°12'20.9" N | 126°43'40.8" E | 
| Osangni : | 
 | 
 | 39°34'0.8" N | 125°57'7.2" E | 
| Osongdong : | 
 | 
 | 39°11'24.0" N | 125°23'31.2" E | 
| Osonggol : | 
 | 
 | 39°11'24.0" N | 125°23'31.2" E | 
| Osongjong : | 
 | 68 m | 39°28'48.0" N | 125°49'55.2" E | 
| Osongkol : | 
 | 
 | 39°11'24.0" N | 125°23'31.2" E | 
| Osongni : | 
 | 
 | 39°29'3.1" N | 125°30'14.4" E | 
| Osuri : | 
 | 
 | 39°4'59.9" N | 125°19'1.2" E | 
| Oulli : | 
 | 
 | 39°20'35.9" N | 125°36'32.4" E | 
| Oundong : | 
 | 
 | 39°2'26.2" N | 125°31'30.0" E | 
| Ounni : | 
 | 
 | 39°20'35.9" N | 125°36'32.4" E | 
| Oyongdong : | 
 | 
 | 39°47'13.9" N | 126°25'26.4" E | 
| Ozan : | 
 | 
 | 39°6'16.9" N | 125°22'1.2" E | 
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