Calmar, IA Profile: Facts & Data


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Calmar, Iowa - Basic Facts

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The City of Calmar had a population of 1,029 as of July 1, 2021.

The primary coordinate point for Calmar is located at latitude 43.1836 and longitude -91.8641 in Winneshiek County. The formal boundaries for the City of Calmar encompass a land area of 1.07 sq. miles and a water area of 0 sq. miles. Winneshiek County is in the Central time zone (GMT -6). The elevation is 1,257 feet.

The City of Calmar 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 Calmar is located within Township of Calmar, a minor civil division (MCD) of Winneshiek County.

Alternate Unofficial Names for Calmar: Marysville.

Jump to... (On This Page!)
  1. Calmar 2021 Demographic Data
  2. Growth Rates for Calmar (Historical & 5-Year Forecast)
  3. Peer Comparisons (Rank and Percentile)
  1. Neighborhoods Demographics (Home Values, Household Income, etc.)
  2. Iowa Research Tools (Easy Tools & Current Data)
  3. Iowa Data Comparison Tool - 2021 Demographics

Calmar, IA Data & Demographics (As of July 1, 2021)


Total Population 1,029 (100%)
Population in Households 1,029 (100.0%)
Population in Families 796 (77.4%)
Population in Group Quarters1 0
Population Density 930
Diversity Index2 14


Median Household Income $66,471
Average Household Income $97,850
% of Income for Mortgage4 11%
Per Capita Income $41,978
Wealth Index5 129


Total HU (Housing Units) 529 (100%)
Owner Occupied HU 377 (71.3%)
Renter Occupied HU 99 (18.7%)
Vacant Housing Units 53 (10.0%)
Median Home Value $175,758
Average Home Value $200,133
Housing Affordability Index3 210


Total Households 476
Average Household Size 2.16
Family Households 296
Average Family Size 3
  1. Group Quarters - a place where people live or stay in a group living arrangement. Includes college residents halls, nursing facilities, military barracks, and correctional facilities.
  2. 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 races 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.
  3. The Housing Affordability Index base is 100 and represents a balance point where a resident with a median household income can normally qualify to purchase a median price home. Values above 100 indicate increased affordability, while values below 100 indicate decreased affordability.
  4. The % of Income for Mortgage quantifies the percentage of median household income dedicated to mortgage payments on a home priced at the median value (assuming a 30-year mortgage and a 20% down payment).
  5. The Wealth Index is based on a number of indicators of affluence including average household income and average net worth, but it also includes the value of material possessions and resources. It represents the wealth of the area relative to the national level. Values above or below 100 represent above-average wealth or below-average wealth compared to the national level.


2010-2021 2021-2026
Population 0.45% -0.12%
Households 0.62% 0.0%
Families 1.44% -0.2%
Median Household Income   0.42%
Per Capita Income   1.2%
Owner Occupied HU   0.16%

Calmar, IA - Peer Comparisons by Rank and Percentile

The table below compares Calmar to the other 1,008 incorporated cities, towns and CDPs in Iowa by rank and percentile using July 1, 2021 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 # 281 72nd
Population Density # 339 66th
Median Household Income # 324 68th
Housing Affordability Index # 439 44th
Per Capita Income # 76 93rd
Diversity Index # 368 63rd

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

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