Grundy County, Iowa demographics
Population: 12,336
Median age: 42.0
Median household income: 74,552
Demographics, population, home values, social and economic characteristics of Grundy County, Iowa.
Population
| 2021 | 12,336 |
| 2020 | 12,262 |
| 2019 | 12,299 |
| 2018 | 12,341 |
| 2017 | 12,354 |
| 2016 | 12,373 |
| 2015 | 12,407 |
| 2014 | 12,403 |
| 2013 | 12,416 |
| 2012 | 12,431 |
| 2011 | 12,407 |
| 2010 | 12,401 |
| 2009 | 12,166 |
Grundy County, IA cities
Beaman city - 136
Conrad city - 1,110
Dike city - 1,195
Grundy Center city - 2,783
Holland city - 279
Morrison city - 106
Reinbeck city - 1,752
Stout city - 239
Wellsburg city - 755
Census data for Grundy County, Iowa
Demographic and housing estimates in Grundy County, Iowa
| Total population | 12,336 |
| Male | 6,121 |
| Female | 6,215 |
| Total population | 12,336 |
| Under 5 years | 689 |
| 5 to 9 years | 838 |
| 10 to 14 years | 885 |
| 15 to 19 years | 734 |
| 20 to 24 years | 585 |
| 25 to 34 years | 1,352 |
| 35 to 44 years | 1,502 |
| 45 to 54 years | 1,468 |
| 55 to 59 years | 933 |
| 60 to 64 years | 827 |
| 65 to 74 years | 1,357 |
| 75 to 84 years | 837 |
| 85 years and over | 329 |
| Median age (years) | 42.0 |
| Under 18 years | 2,903 |
| 16 years and over | 9,801 |
| 18 years and over | 9,433 |
| 21 years and over | 9,070 |
| 62 years and over | 3,106 |
| 65 years and over | 2,523 |
| Total population | 12,336 |
| One race | 12,198 |
| White | 11,967 |
| Black or African American | 89 |
| American Indian and Alaska Native | 13 |
| Asian | 43 |
| Native Hawaiian and Other Pacific Islander | 0 |
| Some other race | 86 |
| Two or more races | 138 |
| Citizen, VOTING AGE 18 and over population | 9,353 |
| Male Citizen, VOTING AGE 18 and over population | 4,635 |
| Female Citizen, VOTING AGE 18 and over population | 4,718 |
Social characteristics in Grundy County, Iowa
| Total households | 5,024 |
| Family households (families) | 2,972 |
| Married-couple family | 311 |
| Male householder, no wife present, family | 806 |
| Female householder, no husband present, family | 637 |
| Nonfamily households | 935 |
| Average household size | 1,695 |
| Average family size | 2.43 |
Economic characteristics in Grundy County, Iowa
| Total households | 5,024 |
| Less than $10,000 | 151 |
| $10,000 to $14,999 | 115 |
| $15,000 to $24,999 | 361 |
| $25,000 to $34,999 | 262 |
| $35,000 to $49,999 | 704 |
| $50,000 to $74,999 | 938 |
| $75,000 to $99,999 | 868 |
| $100,000 to $149,999 | 904 |
| $150,000 to $199,999 | 397 |
| $200,000 or more | 324 |
| Median household income (dollars) | 74,552 |
Housing characteristics in Grundy County, Iowa
| Total housing units | 5,472 |
| Occupied housing units | 5,024 |
| Vacant housing units | 448 |
| Total housing units | 5,472 |
| 1-unit, detached | 4,693 |
| 1-unit, attached | 81 |
| 2 units | 56 |
| 3 or 4 units | 267 |
| 5 to 9 units | 72 |
| 10 to 19 units | 44 |
| 20 or more units | 52 |
| Mobile home | 207 |
| Boat, RV, van, etc. | 0 |
| Total housing units | 5,472 |
| Built 2014 or later | 11 |
| Built 2010 to 2013 | 123 |
| Built 2000 to 2009 | 408 |
| Built 1990 to 1999 | 407 |
| Built 1980 to 1989 | 343 |
| Built 1970 to 1979 | 736 |
| Built 1960 to 1969 | 404 |
| Built 1950 to 1959 | 683 |
| Built 1940 to 1949 | 366 |
| Built 1939 or earlier | 1,991 |
| Total housing units | 5,472 |
| 1 room | 12 |
| 2 rooms | 63 |
| 3 rooms | 247 |
| 4 rooms | 614 |
| 5 rooms | 680 |
| 6 rooms | 1,078 |
| 7 rooms | 952 |
| 8 rooms | 648 |
| 9 rooms or more | 1,178 |
| Median rooms | 6.5 |
| Total housing units | 5,472 |
| No bedroom | 17 |
| 1 bedroom | 385 |
| 2 bedrooms | 1,095 |
| 3 bedrooms | 2,275 |
| 4 bedrooms | 1,343 |
| 5 or more bedrooms | 357 |
| Occupied housing units | 5,024 |
| Owner-occupied | 4,232 |
| Renter-occupied | 792 |
| Average household size of owner-occupied unit | 2.50 |
| Average household size of renter-occupied unit | 2.07 |
| Occupied housing units | 5,024 |
| Moved in 2017 or later | 447 |
| Moved in 2015 to 2016 | 899 |
| Moved in 2010 to 2014 | 774 |
| Moved in 2000 to 2009 | 1,234 |
| Moved in 1990 to 1999 | 712 |
| Moved in 1989 and earlier | 958 |
| Owner-occupied units | 4,232 |
| Less than $50,000 | 268 |
| $50,000 to $99,999 | 1,017 |
| $100,000 to $149,999 | 860 |
| $150,000 to $199,999 | 814 |
| $200,000 to $299,999 | 758 |
| $300,000 to $499,999 | 433 |
| $500,000 to $999,999 | 69 |
| $1,000,000 or more | 13 |
| Median (dollars) | 148,300 |
| Owner-occupied units | 4,232 |
| Housing units with a mortgage | 2,377 |
| Housing units without a mortgage | 1,855 |
| Occupied units paying rent | 685 |
| Less than $500 | 96 |
| $500 to $999 | 456 |
| $1,000 to $1,499 | 73 |
| $1,500 to $1,999 | 19 |
| $2,000 to $2,499 | 4 |
| $2,500 to $2,999 | 0 |
| $3,000 or more | 37 |
| Median (dollars) | 709 |
| No rent paid | 107 |
Demographic data for Grundy County, IA and each city in the county. Lists of cities by population, wealth and poverty in Grundy County, IA.
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