Rock Falls, IA Profile: Facts, Map & Data


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Rock Falls, Iowa - Basic Facts

The City of Rock Falls had a population of 147 as of July 1, 2017. Rock Falls ranks in the lower quartile for Diversity Index when compared to the other cities, towns and Census Designated Places (CDPs) in Iowa. See peer rankings below.

The primary coordinate point for Rock Falls is located at latitude 43.207 and longitude -93.0872 in Cerro Gordo County. The formal boundaries for the City of Rock Falls (see map below) encompass a land area of 0.21 sq. miles and a water area of 0 sq. miles. Cerro Gordo County is in the Central time zone (GMT -6). The elevation is 1,109 feet.

The City of Rock Falls (GNIS ID: 2396398) has a C1 Census Class Code which indicates an active incorporated place that does not serve as a county subdivision equivalent. It also has a Functional Status Code of "A" which identifies an active government providing primary general-purpose functions.

The City of Rock Falls is located within Township of Falls, a minor civil division (MCD) of Cerro Gordo County.

Beneath the boundary map are tables with Rock Falls population, income and housing data, five-year growth projections and peer comparisons for key demographic data. The estimates are for July 1, 2017.

Neighborhood Data

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City of Rock Falls, IA Boundary Map

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Boundary Maps: Township of Falls | Cerro Gordo County | Iowa Counties

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Rock Falls, IA Data & Demographics (As of July 1, 2017)


Total Population 147
Daytime Population: Workers 19
Daytime Population: Residents 59
Total Daytime Population (TDP) 78
Ratio TDP/Total Population1 0.53
Population in Households 147
Population in Familes 123
Population in Group Qrtrs 0
Population Density2 695
Diversity Index3 5


Median Household Income $60,488
Average Household Income $67,144
Per Capita Income $28,843


Total Housing Units 74 (100%)
Owner Occupied HU 57 (77.0%)
Renter Occupied HU 9 (12.2%)
Vacant Housing Units 9 (12.2%)
Median Home Value $144,643
Average Home Value $159,211


Total Households 65
Average Household Size 2.26
Family Households 47
Average Family Size 3
  1. If the ratio of the TDP to Total Population is greater than 1, the location gains population during the day when commuting workers are present. If the ratio is less than 1, the location is more of a bedroom community where people commute to another place for work.
  2. Population Density = Total Population per square mile.
  3. The Diversity Index is a scale of 0 to 100 that represents the likelihood that two persons, chosen at random from the same area, belong to different race or ethnic groups. If an area's entire population belongs to one race AND one ethnic group, then the area has zero diversity. An area's diversity index increases to 100 when the population is evenly divided into two or more race/ethnic groups.


2010-2017 2017-2022
Population -0.73% -0.55%
Households -0.62% -0.31%
Families -0.85% -0.43%
Median Household Income   2.98%
Per Capita Income   2.31%

Rock Falls, IA - Peer Comparisons by Rank and Percentile

The table below compares Rock Falls to the other 1,009 incorporated cities, towns and CDPs in Iowa by rank and percentile using July 1, 2017 data. The location Ranked # 1 has the highest value. A location that ranks higher than 75% of its peers would be in the 75th percentile of the peer group.

Variable Description Rank Percentile
Total Population # 786 22nd
Population Density # 491 51st
Diversity Index # 833 17th
Median Household Income # 247 76th
Per Capita Income # 377 63rd

Additional comparisons and rankings can be made with a VERY EASY TO USE Iowa Census Data Comparison Tool.

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