What is the population of Rock Rapids?

The population of Rock Rapids, IA is 2,518.

Where is Rock Rapids located?

Rock Rapids, IA is located at latitude 43.4271900 and longitude -96.1758600. It is in United States.

What is the area of Rock Rapids?

The area of Rock Rapids, IA is 11.000719 km².

What is the elevation of Rock Rapids?

Rock Rapids, IA has an elevation of 423 meters (1388 feet) above sea level.

What time zone is Rock Rapids in?

Rock Rapids, IA is in the America/Chicago time zone.

What state is Rock Rapids in?

Rock Rapids is in the state of Iowa, United States.

What county is Rock Rapids, IA in?

Rock Rapids is in Lyon County, Iowa.

How has the population of Rock Rapids changed?

The population of Rock Rapids, IA has decreased from 2,549 (2010) to 2,518 (2020), a change of -1.2%.

MapSof.net

Countries States Cities

Maps Distance Calculator Geocoder Distances

Rock Rapids, Iowa

Rock Rapids: city in Iowa

About

Rock Rapids is a city located in the county of Lyon in the U.S. state of Iowa. Its population at the 2010 census was 2,549 and a population density of 232 people per km². After 10 years in 2020 city had an estimated population of 2,518 inhabitants.

Rock Rapids locator map — Location of Rock Rapids on Iowa map.

Quick Facts about Rock Rapids

Population	2,518 (2020)
Country	United States of America
State	Iowa (United States)
County	Lyon County
Postal code	51246
Phone Area Codes	712
Area	11 km²
Latitude & Longitude	43.4272,-96.1759
Altitude	1,388 feet / 423 meters
Capital city	Rock Rapids is capital of Lyon County
Time Zone	America/Chicago
Local time	19:44:10 (22nd April 2026)
Density	229 Pop. per km² as of 2020
Population growth	-1.23% (2010-2020)
Weather	86℉ Mostly Sunny 7-days weather

Lyon County Iowa Incorporated and Unincorporated areas Rock Rapids Highlighted locator map image

Geography

Rock Rapids is located at 43°25'38"N 96°10'33"W (43.4271900, -96.1758600).

Rock Rapids map

Click "full screen"

icon to open full mode. View satellite images

Weather

86°F

Mostly Sunny

10 to 25 mph SSE Wednesday

Mostly sunny, with a high near 86. South southeast wind 10 to 25 mph, with gusts as high as 35 mph.

7-Day Forecast

Official website of Rock Rapids

Official Website

Demographics

According to census records, the population of Rock Rapids decreased by 1.23% in 10 years.

Year	Population	% Change	Method
2010	2,549	-	census
2011	2,567	0.7%	estimation process
2012	2,568	0.04%	estimation process
2013	2,561	-0.27%	estimation process
2014	2,560	-0.04%	estimation process
2015	2,566	0.23%	estimation process
2016	2,550	-0.63%	estimation process
2017	2,547	-0.12%	estimation process
2018	2,546	-0.04%	estimation process
2019	2,522	-0.95%	estimation process
2020	2,518	-0.16%	estimation process

Rock Rapids zip code is 51246. County name: Lyon, County fips: 19119

Rok Rapids, rak rpyd aywwa, rwk rabydz, Рок Рапидс, راک رپید، آیووا, روك رابيدز

People born in Rock Rapids (3)

People born in Rock Rapids, including musicologist Donald Jay Grout, composer and choral director Jack Halloran, Constance Congdon, .

More notable people

Nearby Schools and Colleges

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

Code	Name	City	ZIP
154129	Northwest Iowa Community College	Sheldon (IA)	51201

Nearby Post Offices

Closest post offices linked to Rock Rapids.

Post Office Name	City	ZIP
Rock Rapid Post Office	Rock Rapids (IA)	51246

Other cities in Lyon County

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

City Name	Population	Title
George	1,029	City in Iowa, USA
Larchwood	918	Township in Lyon County, Iowa
Inwood	847	City in Lyon County, Iowa, United States
Doon	599	City in Lyon County, Iowa, United States
Little Rock	433	Human settlement in Lyon County, Iowa, United States of America
Lester	303	City in Lyon County, Iowa, United States
Alvord	210	Human settlement in Lyon County, Iowa, United States of America

Distance to Other Cities

Rock Rapids distances to largest Iowa cities