Grinnell, IA Profile: Facts, Map & Data


Grinnell Local Links & Resources:
Hotels | Resources | ALL Grinnell Content

Also See: Grinnell, IA ZIP Codes & ZIP Code Maps | Local Area Photos

Grinnell, Iowa - Basic Facts

The City of Grinnell had a population of 8,984 as of July 1, 2017. Grinnell ranks in the upper quartile for Population Density and 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 Grinnell is located at latitude 41.7367 and longitude -92.7249 in Poweshiek County. The formal boundaries for the City of Grinnell (see map below) encompass a land area of 5.51 sq. miles and a water area of 0.04 sq. miles. Poweshiek County is in the Central time zone (GMT -6). The elevation is 1,014 feet.

The City of Grinnell (GNIS ID: 467979) has a C2 Census Class Code which indicates an active incorporated place legally coextensive with a county subdivision but treated as independent of any county subdivision. It also has a Functional Status Code of "A" which identifies an active government providing primary general-purpose functions.

The City of Grinnell is located within , a minor civil division (MCD) of Poweshiek County.

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

EXTREMELY LOCAL Demographic Data

Address Based Hyperlocal Data Input an address and get data & demographics for the pertinent census block group (CBG), a searchable map and a customized directory. The CBG is the smallest geographical unit used by the Census Bureau for reporting demographic data.


City of Grinnell, IA Boundary Map

Also See: BIG Map | Driving Directions | IA Congressional Districts
Boundary Maps: | Poweshiek County | Iowa Counties

Search the map for:

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


Total Population 8,984
Daytime Population: Workers 7,061
Daytime Population: Residents 4,371
Total Daytime Population (TDP) 11,432
Ratio TDP/Total Population1 1.27
Population in Households 7,518
Population in Familes 5,526
Population in Group Qrtrs 1,466
Population Density2 1,632
Diversity Index3 28


Median Household Income $56,023
Average Household Income $71,622
Per Capita Income $28,940


Total Housing Units 3,827 (100%)
Owner Occupied HU 2,184 (57.1%)
Renter Occupied HU 1,240 (32.4%)
Vacant Housing Units 403 (10.5%)
Median Home Value $148,983
Average Home Value $178,136


Total Households 3,424
Average Household Size 2.2
Family Households 1,936
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 -0.35% -0.39%
Households -0.56% -0.56%
Families -0.62% -0.68%
Median Household Income   2.22%
Per Capita Income   1.82%

Grinnell, IA - Peer Comparisons by Rank and Percentile

The table below compares Grinnell 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 # 45 96th
Population Density # 67 93rd
Diversity Index # 82 92nd
Median Household Income # 401 60th
Per Capita Income # 371 63rd

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

Iowa Research Tools

Iowa Census Data Comparison Tool

Compare Iowa Census Data
Highest or Lowest: