What is the population of Spencer?

The population of Spencer, IA is 10,989.

Where is Spencer located?

Spencer, IA is located at latitude 43.1413600 and longitude -95.1444400. It is in United States.

What is the area of Spencer?

The area of Spencer, IA is 28.701074 km².

What is the elevation of Spencer?

Spencer, IA has an elevation of 400 meters (1312 feet) above sea level.

What time zone is Spencer in?

Spencer, IA is in the America/Chicago time zone.

What state is Spencer in?

Spencer is in the state of Iowa, United States.

What county is Spencer, IA in?

Spencer is in Clay County, Iowa.

How has the population of Spencer changed?

The population of Spencer, IA has decreased from 11,233 (2010) to 10,989 (2020), a change of -2.2%.

Spencer, Iowa

Spencer: city in the state of Iowa (United States)

About

Spencer is a city located in the county of Clay in the U.S. state of Iowa. Its population at the 2010 census was 11,233 and a population density of 391 people per km². After 10 years in 2020 city had an estimated population of 10,989 inhabitants.

Spencer locator map — Location of Spencer on Iowa map.

Quick Facts about Spencer

Population	10,989 (2020)
Country	United States of America
State	Iowa (United States)
County	Clay County
Postal code	51301
Phone Area Codes	712
Area	28.7 km²
Latitude & Longitude	43.1414,-95.1444
Altitude	1,312 feet / 400 meters
Capital city	Spencer is capital of Clay County
Time Zone	Central Time Zone
Local time	16:54:28 (22nd April 2026)
Density	383 Pop. per km² as of 2020
Population growth	-2.22% (2010-2020)
Weather	83℉ Sunny 7-days weather

Clay County IA Courthouse image

Geography

Spencer is located at 43°8'29"N 95°8'40"W (43.1413600, -95.1444400).

Spencer map

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Weather

83°F

Sunny

10 to 25 mph SSE Wednesday

Sunny, with a high near 83. South southeast wind 10 to 25 mph, with gusts as high as 35 mph.

7-Day Forecast

Official website of Spencer

Official Website

Demographics

According to census records, the population of Spencer decreased by 2.22% in 10 years.

Year	Population	% Change	Method
2010	11,233	-	census
2011	11,203	-0.27%	estimation process
2012	11,164	-0.35%	estimation process
2013	11,130	-0.31%	estimation process
2014	11,180	0.45%	estimation process
2015	11,199	0.17%	estimation process
2016	11,094	-0.95%	estimation process
2017	11,032	-0.56%	estimation process
2018	11,011	-0.19%	estimation process
2019	10,952	-0.54%	estimation process
2020	10,989	0.34%	estimation process

Spencer zip code is 51301. County name: Clay, County fips: 19041

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Services and Civic Places in Spencer

1Spencer City Hall

101 W 5th St, Spencer, IA 51301 View details

Phone: +17125807200 | Website available

People born in Spencer (13)

People born in Spencer, including resident cat at the Spencer Public Library in Spencer, Iowa, US Dewey Readmore Books, writer Vicki Myron, football player Garry Howe, .

More notable people

Lynn Wardlow (American politician) he was born in 11/11/1943
Richard L. Tierney (American writer) he was born in 07/08/1936
Robert Suderburg (American composer) he was born in 28/01/1936
Robin Thede (American comedian) she was born in 27/07/1979
Tom W. Shaw (American politician) he was born in 01/01/1961
Ronald Roskens (American academic) he was born in 11/12/1932
Krista Marie DeGeest (US volleyball player) she was born in 10/01/1990
John Sullivan he was born in 10/05/1938
Ryan Vermeer (American golfer) he was born in 11/01/1978
Jeff Taylor (American political scientist and politician) he was born in 30/01/1961

Nearby Schools and Colleges

Schools and campuses linked to Spencer, IA. Select a name to open its map and contact details.

Code	Name	City	ZIP
381486	Faust Institute of Cosmetology-Spirit Lake	Spirit Lake (IA)	51360

Nearby Post Offices

Closest post offices linked to Spencer.

Post Office Name	City	ZIP
Spencer Post Office	Spencer (IA)	51301

Other places with the same name (13)

Spencer, Massachusetts town in Massachusetts with a population of 11,898 people.
Spencer, Michigan township in Kent County, Michigan with a population of 4,292 people.
Spencer, Oklahoma city in Oklahoma with a population of 3,959 people.
Spencer, North Carolina town in North Carolina with a population of 3,260 people.
Spencer, New York human settlement in Tioga County, New York, United States of America with a population of 2,889 people.
Spencer, Indiana town in Washington Township, Owen County, Indiana, United States with a population of 2,262 people.
Spencer, Ohio village in Spencer Township located in Medina County, Ohio, United States with a population of 2,059 people.
Spencer, West Virginia city in West Virginia with a population of 1,989 people.
Spencer, Tennessee town in Tennessee, USA with a population of 1,710 people.
Spencer, Wisconsin village in Marathon County, Wisconsin with a population of 1,675 people.
Spencer, Nebraska village in Boyd County, Nebraska, United States with a population of 402 people.
Spencer, South Dakota city in South Dakota, United States of America with a population of 145 people.
Spencer, Idaho city in Clark County, Idaho, United States with a population of 32 people.

Other cities in Clay County

Cities, towns, neighborhoods & other populated places in Clay County , IA.

City Name	Population	Title
Everly	541	City in Iowa, USA
Royal	400	Town in Iowa
Peterson	304	Human settlement in Clay County, Iowa, United States of America
Fostoria	219	City in Iowa
Dickens	168	Park in Clay County, Iowa, United States of America
Webb	126	City in Clay County, Iowa, United States
Greenville	67	City in Clay County, Iowa, United States
Rossie	67	City in Clay County, Iowa, United States
Gillett Grove	47	Human settlement in Clay County, Iowa, United States of America

Distance to Other Cities

Spencer distances to largest Iowa cities