Red Oak, Iowa

Red Oak: City in and county seat of Montgomery County, Iowa, United States

About

Red Oak is a city located in the county of Montgomery in the U.S. state of Iowa. Its population at the 2010 census was 5,742 and a population density of 554 people per km². After 10 years in 2020 city had an estimated population of 5,271 inhabitants.

Red Oak locator map
Location of Red Oak on Iowa map.

Quick Facts about Red Oak

Population : 5,271 (2020)
Country : United States of America
State : Iowa (United States)
County : Montgomery County
Phone Area Codes : 712
Area : 10.36 km2
Altitude : 1,050 feet / 320 meters
Capital city : Red Oak is capital of Montgomery County
Time Zone : America/Chicago
Local time : 02:18:48 (5th December 2025)
Postal code : 51566
Density : 509 Pop. per km² as of 2020
Population growth : -8.94% (2010-2020)
M. E. Church Red Oak Iowa image
M. E. Church Red Oak Iowa
M. E. Church Red Oak Iowa image
M. E. Church Red Oak Iowa image

Geography

Red Oak is located at 41°0'35"N 95°13'32"W (41.0097200, -95.2255500).

Red Oak map

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Demographics

According to census records, the population of Red Oak decreased by 8.94% in 10 years.

Year Population % Change Method
2010 5,742 - census
2011 5,676 -1.16% estimation process
2012 5,629 -0.83% estimation process
2013 5,561 -1.22% estimation process
2014 5,551 -0.18% estimation process
2015 5,426 -2.3% estimation process
2016 5,410 -0.3% estimation process
2017 5,396 -0.26% estimation process
2018 5,305 -1.72% estimation process
2019 5,276 -0.55% estimation process
2020 5,271 -0.09% estimation process

Red Oak zip code is 51566. County name: Montgomery, County fips: 19137

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Stations (2)

Amtrak & bus stations near Red Oak, IA

Code Name Address Type
OMA Omaha 1003 S. 9th Street RAIL
CRN Creston Pine and Adams Avenue RAIL

Post Office

Post offices near Red Oak

Post Office Name City ZIP
Red Oak Post Office Red Oak (IA) 51566

Other places with the same name (4)

  • Red Oak , Texas city in and county seat of Montgomery County, Iowa, United States with a population of 14,098 people.
  • Red Oak , North Carolina city in Nash County, North Carolina, United States of America with a population of 3,492 people.
  • Red Oak , Oklahoma town in Latimer County, Oklahoma, United States with a population of 480 people.

Other cities in Montgomery County

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

City Name Population Title
Villisca 1,143 City in Montgomery County, Iowa, United States
Stanton 648 City in Iowa, United States
Elliott 319 Human settlement in Montgomery County, Iowa, United States of America
Grant 84 City from Montgomery County, Iowa
Coburg 39 City in Iowa, US

Distance to Other Cities

Red Oak distances to largest Iowa cities