Hardwood Floor Refinishing in Coralville, Iowa
Coralville, in Johnson County, grew from 22,333 people in the Census Bureau's April 2020 estimates base to 23,959 in its 2024 estimate.
Housing at a glance
| Measure | Figure |
|---|---|
| Population, April 2020 estimates base | 22,333 |
| Population, 2024 estimate | 23,959 |
| Housing units (give or take) | 10,586 (give or take 448) |
| Median year built (give or take) | 1995 (give or take 2 years) |
| Built in 1939 or earlier | 2.3% |
| Built in 2000 or later | 39.7% |
| Single-family homes standing alone | 37.3% |
| In buildings of five or more units | 39.2% |
| Mobile homes | 2.2% |
| Owner-occupied homes | 55.9% |
| Renter-occupied homes | 44.1% |
| Householders who moved in during 2020 or later | 37.6% |
| Median gross rent | $1,057 a month |
| Median value of owner-occupied homes | $298,500 |
| Residents 3 and over enrolled in college or graduate school | 10.4% |
| About these figures | Population is the Census Bureau's April 2020 estimates base and 2024 estimate; the rest are Census Bureau, ACS 2020-2024 5-year estimates. They are sample-based estimates with margins, and they describe housing and households, not floors |
Homes by year built
| Year built | Homes | Share |
|---|---|---|
| 2020 or later | 326 | 3.1% |
| 2010 to 2019 | 2,165 | 20.5% |
| 2000 to 2009 | 1,715 | 16.2% |
| 1990 to 1999 | 2,001 | 18.9% |
| 1980 to 1989 | 1,430 | 13.5% |
| 1970 to 1979 | 920 | 8.7% |
| 1960 to 1969 | 1,107 | 10.5% |
| 1950 to 1959 | 495 | 4.7% |
| 1940 to 1949 | 182 | 1.7% |
| 1939 or earlier | 245 | 2.3% |
How the town began
The City of Coralville says its development began after the construction, in 1843, of what was then the largest dam in Iowa, built on the Iowa River, and the mills that used its power. The town was christened Coralville in 1866, shortly after Louis Agassiz, a Harvard zoologist, spoke at the University of Iowa about coral reefs and was impressed by samples of fossilized coral in the limestone around the mills. By its incorporation in 1873, the city says, Coralville's population had grown to almost 300 (City of Coralville, Coralville History, as of 2026). The city adds that a newer dam, authorized by Congress in 1938 and completed in 1958 by the U.S. Army Corps of Engineers, stands four miles upstream.
What stands out
The town that began at an 1843 mill dam now has a mostly recent housing stock: the median year built is 1995, and about 72 percent of homes date from 1980 or later. Multi-unit buildings outnumber detached houses, with about 47 percent of units in buildings of two or more, against 37 percent single-family homes standing alone. The renter share is the second highest of the eleven, after Iowa City's. Enrollment in college or graduate school is about 10 percent of residents aged 3 and over, well below Iowa City's 34 percent, which is measured the same way.