What is the population of Dewey County?

The population of Dewey County, OK is 4,815.

Where is Dewey County located?

Dewey County, OK is located at latitude 35.9876600 and longitude -99.0078900. It is in United States.

What is the area of Dewey County?

The area of Dewey County, OK is 6334 km².

What is the elevation of Dewey County?

Dewey County, OK has an elevation of 546 meters (1791 feet) above sea level.

What time zone is Dewey County in?

Dewey County, OK is in the America/Chicago time zone.

How has the population of Dewey County changed?

The population of Dewey County, OK has increased from 4,810 (2010) to 4,815 (2020), a change of 0.1%.

Dewey County, Oklahoma

Dewey County: county in South Dakota, United States of America

About

Dewey County is a county located in the U.S. state of Oklahoma. As of the 2010 census, the population was 4,810 and a population density of 1 people per km². After 10 years in 2020 county had an estimated population of 4,815 inhabitants. Its county seat is Timber Lake. The county was created 143 years ago in 1882.

Dewey County locator map — Location of Dewey County on Oklahoma map.

County Snapshot

Dewey County at a glance

Dewey County currently has 7 quality-checked populated place pages linked on MapSof, making it easier to jump from the county overview into local city pages.

Browse county places

Mapped populated places

These counts use a stricter populated-place filter so the main lists stay focused on real city and town pages.

Oklahoma counties

Open related pages

Largest city

Seiling

Population 839

Quick Facts about Dewey County

Population	4,815 (2020)
Country	United States of America
State	Oklahoma (United States)
Different from	Dewey, Dewey County
Area	6334 km²
Water as percent of area	5.8%
Land as percent of area	94.2%
Latitude & Longitude	35.9877,-99.0079
Altitude	1,860 feet / 567 meters
Capital	Timber Lake
Establishment	January 01, 1883
Time Zone	America/Denver
Local time	21:06:00 (18th April 2026)
Density	1 Pop. per km² as of 2020
Population growth	0.1% (2010-2020)
Weather	66℉ Sunny 7-days weather

FOREST CITY BRIDGE DEWEY COUNTY SD image

Geography

Dewey County is located at 35°59'16"N 99°0'28"W (35.9876600, -99.0078900). It has 6 neighbors: Potter County, Walworth County, Corson County, Stanley County, Sully County and Ziebach County.

Dewey County map

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The largest city of Dewey County is Seiling with a population of 839. Other cities include, Vici population 685, Leedey population 442, Taloga population 307 and Camargo population 178. See all Dewey County cities & populated places.

Dewey County Populated Places

Cities, towns, neighborhoods & other populated places in Dewey County.

City Name	Population	Title
Seiling	839	Human settlement in Dewey County, Oklahoma, United States of America
Vici	685	Town in Oklahoma
Leedey	442	Town in Dewey County, Oklahoma, United States
Taloga	307	Town in Oklahoma
Camargo	178	Town in Oklahoma, United States
Oakwood	66	Town in Dewey County, Oklahoma, United States
Putnam	29	Town in Oklahoma, US

Weather

66°F

Sunny

13 to 25 mph N Saturday

Sunny, with a high near 66. North wind 13 to 25 mph, with gusts as high as 38 mph.

7-Day Forecast

Dewey County has 6 neighbours.

Potter County county in South Dakota, United States
Walworth County county in South Dakota, United States
Corson County county in South Dakota, United States
Stanley County county in South Dakota, United States
Sully County county in South Dakota, United States
Ziebach County county in South Dakota, United States of America

Timber Lake

Demographics

The population of Dewey County increased by 0.1% in 10 years.

Year	Population	% Change	Method
2010	4,810	-	census
2011	4,785	-0.52%	estimation process
2012	4,817	0.66%	estimation process
2013	4,857	0.82%	estimation process
2014	4,966	2.19%	estimation process
2015	4,984	0.36%	estimation process
2016	4,905	-1.61%	estimation process
2017	4,899	-0.12%	estimation process
2018	4,931	0.65%	estimation process
2019	4,891	-0.82%	estimation process
2020	4,815	-1.58%	estimation process

Comitatul Dewey, Comte de Dewey, Comté de Dewey, Condado de Dewey, Condado han Dewey, Contea di Dewey, D'jui, Dewey, Dewey Kun, Dewey Kūn, Dewey konderria, Dewey maakond, Dewey megye, Djui, Hrabstwo Dewey, Okrug Djui, Quan Dewey, Quận Dewey, de~yui jun, di'u'i ka'unti, du wei xian, shhrstan dwwy aklahma, Дьюи, Дьюї, Дюи, Округ Дјуи, شهرستان دووی، اکلاهما, مقاطعة ديوي, ڈیوی کاؤنٹی، اوکلاہوما, ডিউই কাউন্টি, デューイ郡, 杜威縣

Other places with the same name (1)

Dewey County, South Dakota county in South Dakota, United States of America with a population of 5,789 people.

Oklahoma Other Counties (more counties)

County Name	Population	Title
Oklahoma County	804,041	County in Oklahoma, United States
Tulsa County	657,589	County in Oklahoma, United States of America
Oklahoma City	655,057	The twenty-seventh most populous city in the United States and the center of the Oklahoma City metropolitan area.
Tulsa	403,166	The second most populous city in Oklahoma and the center of the Tulsa metropolitan area.
Cleveland County	287,066	County in North Carolina, United States
Canadian County	153,192	County in Oklahoma, United States
Norman	125,762	The second most populous city in Oklahoma.
Comanche County	121,099	County in Oklahoma, United States
Broken Arrow	111,648	The most populous city in Tulsa County, Oklahoma.
Edmond	95,346	The fourth most populous city in Oklahoma County, Oklahoma.
Lawton	93,164	The most populous city in Comanche County, Oklahoma.
Rogers County	93,155	County in Oklahoma, United States
Wagoner County	82,925	County in Oklahoma, United States of America
Payne County	81,755	County in Oklahoma, United States
Pottawatomie County	72,998	County in Oklahoma, United States
Creek County	71,485	County in Oklahoma, United States