What is the population of Isabel?

The population of Isabel, SD is 150.

Where is Isabel located?

Isabel, SD is located at latitude 45.3941500 and longitude -101.4295900. It is in United States.

What is the area of Isabel?

The area of Isabel, SD is 2.344513 km².

What is the elevation of Isabel?

Isabel, SD has an elevation of 731 meters (2398 feet) above sea level.

What time zone is Isabel in?

Isabel, SD is in the America/Denver time zone.

What state is Isabel in?

Isabel is in the state of South Dakota, United States.

What county is Isabel, SD in?

Isabel is in Dewey County, South Dakota.

How has the population of Isabel changed?

The population of Isabel, SD has increased from 135 (2010) to 150 (2020), a change of 11.1%.

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Isabel, South Dakota

Isabel: town in Dewey County, South Dakota, United States

About

Isabel is a town located in the county of Dewey in the U.S. state of South Dakota. Its population at the 2010 census was 135 and a population density of 58 people per km². After 10 years in 2020 city had an estimated population of 150 inhabitants.

Isabel locator map — Location of Isabel on South Dakota map.

Quick Facts about Isabel

Population	150 (2020)
Country	United States of America
State	South Dakota (United States)
County	Dewey County
Postal code	57633
Phone Area Codes	605
Area	2.34 km²
Water as percent of area	0%
Land as percent of area	100%
Latitude & Longitude	45.3942,-101.4296
Altitude	2,398 feet / 731 meters
Time Zone	America/Denver
Local time	21:26:21 (22nd April 2026)
Density	64 Pop. per km² as of 2020
Population growth	10% (2010-2020)
Weather	50℉ Mostly Clear 7-days weather

Dewey County South Dakota Incorporated and Unincorporated areas Isabel Highlighted locator map image

Geography

Isabel is located at 45°23'39"N 101°25'47"W (45.3941500, -101.4295900).

Isabel map

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Weather

50°F

Mostly Clear

15 to 18 mph SE Tuesday Night

Mostly clear, with a low around 50. Southeast wind 15 to 18 mph, with gusts as high as 29 mph.

7-Day Forecast

Demographics

The population of Isabel increased by 10% in 10 years.

Year	Population	% Change	Method
2010	135	-	census
2011	137	1.46%	estimation process
2012	140	2.14%	estimation process
2013	141	0.71%	estimation process
2014	143	1.4%	estimation process
2015	141	-1.42%	estimation process
2016	150	6%	estimation process
2017	151	0.66%	estimation process
2018	153	1.31%	estimation process
2019	152	-0.66%	estimation process
2020	150	-1.33%	estimation process

Isabel zip code is 57633. County name: Dewey, County fips: 46041

Nearby Post Offices

Closest post offices linked to Isabel.

Post Office Name	City	ZIP
Isabel Post Office	Isabel (SD)	57633

Other places with the same name (3)

Isabel, Illinois unincorporated community in Illinois with a population of 179 people.
Isabel, Kansas city in Barber County, Kansas, United States with a population of 80 people.
Isabel, North Dakota unincorporated community in North Dakota with a population of 47 people.

Other cities in Dewey County

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

City Name	Population	Title
North Eagle Butte	1,954	Census designated place in Dewey County, South Dakota, United States
Eagle Butte	1,418	City in Dewey and Ziebach counties in South Dakota, United States
Timber Lake	491	City in and county seat of Dewey County, South Dakota, United States
Virginia	292	Township in Union County, South Dakota
Firesteel	35	Unincorporated community in South Dakota
Moreau	27	Township in Perkins County, South Dakota