51648, IA Demographics

Population 187 · Census ACS 2020–24

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51648, IA map of median age by neighborhood
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Population and households in ZIP 51648

Household size in ZIP 51648

Household size, people per household
PeriodZIP 51648IowaU.S.
2006–102.242.442.68
2010–142.302.452.73
2015–192.442.432.71
2020–242.282.432.65
Change+0.03−0.01−0.03
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ZIP 51648 is a place of small households, averaging 2.28 people against 2.65 for the U.S., which points to many singles, couples and roommates and relatively few children.

Household size: the average number of people living in each occupied home. Source: BestNeighborhood calculations from U.S. Census Bureau ACS 5-year block-group estimates (table B25010).

Median age in ZIP 51648

Median age, years
PeriodZIP 51648IowaU.S.
2006–1050.938.837.7
2010–1450.539.338.6
2015–1943.039.739.6
2020–2448.739.840.1
Change−2.3+1.0+2.3
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With a median age of 48.7, ZIP 51648 is noticeably older than the country as a whole (40.1), an age mix that tilts toward empty nesters and retirees. Since 2006–10, the median age has dropped from 50.9, but in a place this small, survey estimates can swing a lot from one release to the next.

Median age: the age that splits residents into two equal halves. Source: BestNeighborhood calculations from U.S. Census Bureau ACS 5-year block-group estimates (table B01002).

Single-parent households in ZIP 51648

Single-parent households, % of households
PeriodZIP 51648IowaU.S.
2006–104.4%9.5%12.3%
2010–143.3%9.9%12.3%
2015–1910.1%10.0%11.6%
2020–247.2%10.0%11.6%
Change+2.8 pts+0.6 pts−0.6 pts
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Single-parent households are relatively rare in ZIP 51648: 7.2% of households, against 11.6% nationally.

Single-parent households: households where one adult with no spouse present lives with children under 18. Source: BestNeighborhood calculations from U.S. Census Bureau ACS 5-year block-group estimates (table B11003).

Housing in ZIP 51648

Renters in ZIP 51648

Renters, % of occupied homes
PeriodZIP 51648IowaU.S.
2006–1020.6%26.8%33.3%
2010–1414.0%28.2%35.6%
2015–1916.9%28.9%36.0%
2020–2423.8%28.3%34.8%
Change+3.2 pts+1.5 pts+1.5 pts
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ZIP 51648 is largely a place of homeowners: only 23.8% of households rent, far below the national share of 34.8%. Owner-heavy areas like this tend to see less turnover. Among homeowners, 66.1% have no mortgage at all, well above the national share of 39.8%.

Renters: occupied homes that are rented rather than owned. Source: BestNeighborhood calculations from U.S. Census Bureau ACS 5-year block-group estimates (table B25003).

Vacant homes in ZIP 51648

Vacant homes, % of all homes
PeriodZIP 51648IowaU.S.
2006–106.2%8.7%11.4%
2010–1418.8%8.6%11.4%
2015–1913.8%9.4%11.1%
2020–2410.1%8.8%9.6%
Change+3.9 pts+0.1 pts−1.8 pts
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Vacancy in ZIP 51648 is close to the national rate: 10.1% of homes are empty, against 9.6%.

Vacant homes: homes with no one living in them, including vacation homes and homes for sale or rent. Source: BestNeighborhood calculations from U.S. Census Bureau ACS 5-year block-group estimates (table B25002).

Age of homes in ZIP 51648

Age of homes, median year built
PeriodZIP 51648IowaU.S.
2006–10197019651974
2010–14196419671975
2015–19196619691977
2020–24197619711980
Change+6+6+6
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Homes in ZIP 51648 are about the same age as the nation's housing: the median home was built in 1976, versus 1980 nationally. Homes here are newer than in Iowa overall, where the median home dates to 1971.

Age of homes: the year that splits the housing stock into older and newer halves. Source: BestNeighborhood calculations from U.S. Census Bureau ACS 5-year block-group estimates (table B25035).

Rent in ZIP 51648

Rent, per month
PeriodZIP 51648IowaU.S.
2006–10$632$669$965
2010–14$550$732$1,040
2015–19$893$821$1,213
2020–24$1,427$1,020$1,571
Change+$795+$351+$606
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Rent in ZIP 51648 runs $1,427 a month at the median, utilities included, below the U.S. median of $1,571. Still, rents here are higher than in Iowa as a whole ($1,020). Rent takes 22.6% of the typical renter's income, comfortably under the 30% mark often used to define affordable rent.

Rent: monthly rent plus the utilities renters pay themselves. Source: BestNeighborhood calculations from U.S. Census Bureau ACS 5-year block-group estimates (table B25064).

Education in ZIP 51648

Bachelor's degrees in ZIP 51648

Bachelor's degrees, % of adults 25+
PeriodZIP 51648IowaU.S.
2006–1019.2%26.5%28.4%
2010–1425.5%27.9%29.6%
2015–1921.7%29.3%32.1%
2020–2423.1%32.3%35.6%
Change+3.9 pts+5.8 pts+7.2 pts
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Fewer adults in ZIP 51648 have a four-year degree than in the country as a whole: 23.1%, against 35.6% nationally.

Bachelor's degrees: adults 25 and older with a bachelor's degree or higher. Source: BestNeighborhood calculations from U.S. Census Bureau ACS 5-year block-group estimates (table B15003).

High school graduates in ZIP 51648

High school graduates, % of adults 25+
PeriodZIP 51648IowaU.S.
2006–1095.4%90.4%84.9%
2010–1491.4%91.4%86.1%
2015–1986.3%92.1%87.7%
2020–2488.0%93.0%89.3%
Change−7.4 pts+2.7 pts+4.3 pts
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About as many adults in ZIP 51648 have finished high school as nationally: 88.0%, against 89.3%. The rate is lower than in Iowa as a whole (93.0%).

High school graduates: adults 25 and older with a high school diploma, GED or more. Source: BestNeighborhood calculations from U.S. Census Bureau ACS 5-year block-group estimates (table B15003).

Jobs in ZIP 51648

Unemployment, % of the labor force
PeriodZIP 51648IowaU.S.
2006–102.4%5.2%8.1%
2010–144.7%5.4%9.4%
2015–193.2%3.7%5.6%
2020–240.0%3.7%5.4%
Change−2.4 pts−1.5 pts−2.7 pts
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The survey found almost no one in ZIP 51648 out of work and looking, against 5.4% of the labor force nationally. Because the Census pools five years of responses (2020–24), these rates smooth over short swings and lag the current job market.

Unemployment: people looking for work as a share of everyone working or looking. Source: BestNeighborhood calculations from U.S. Census Bureau ACS 5-year block-group estimates (table B23025).

ZIP 51648 compared with nearby ZIP codes

ZIP codeHousehold sizeMedian ageSingle parentsRentersVacant homesMedian year builtMedian rentBachelor's degreeHigh school diplomaUnemployment
ZIP 516482.2848.77.2%23.8%10.1%1976$1,42723.1%88.0%0.0%
ZIP 684102.6740.811.4%22.4%10.0%1966$94525.6%91.2%2.4%
ZIP 516542.2649.97.1%22.5%10.7%1975$1,33723.0%88.4%0.1%
ZIP 684552.4739.915.0%18.7%29.6%1965$1,60326.0%90.6%0.7%
ZIP 516522.3245.87.7%19.2%15.0%1964$76918.5%92.3%0.6%
ZIP 516402.3643.25.4%19.0%13.2%1953$72619.4%96.8%1.0%
ZIP 684132.4341.314.4%17.5%27.2%1965$1,51824.9%90.9%1.0%
ZIP 683462.8344.04.4%6.3%7.3%1965$70029.2%95.1%5.6%
ZIP 516532.3748.03.3%19.9%6.9%1965$41327.9%91.7%0.5%
ZIP 516502.0049.74.8%24.9%9.4%1955$77115.8%95.1%1.5%
ZIP 516492.3249.23.2%24.7%4.3%1944$86424.9%91.8%1.4%

All figures 2020–24.

Zip codes with similar populations: 31067, GA · 87061, NM · 87028, NM · 86411, AZ · 85927, AZ · 84749, UT · 84733, UT · 84728, UT · 83827, ID · 83808, ID

About these numbers

Every figure on this page is a BestNeighborhood calculation from the Census Bureau's American Community Survey (ACS), built up from the Census block groups that make up ZIP 51648. Each ACS 5-year release pools five years of responses; this page shows the last 15 releases, 2006–10 through 2020–24. Neighboring releases share four of their five years, so they move gradually and small changes between them are within the survey's margin of error; in small places the lines can jump from one release to the next for the same reason. The maps show the same measures for each neighborhood, ranked against the whole country.

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