Population 397 · Census ACS 2020–24
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Population and households in ZIP 51431
Household size in ZIP 51431
| Period | ZIP 51431 | Iowa | U.S. |
|---|---|---|---|
| 2006–10 | 2.33 | 2.44 | 2.68 |
| 2010–14 | 2.46 | 2.45 | 2.73 |
| 2015–19 | 2.39 | 2.43 | 2.71 |
| 2020–24 | 2.38 | 2.43 | 2.65 |
| Change | +0.05 | −0.01 | −0.03 |
ZIP 51431 is a place of small households, averaging 2.38 people against 2.65 for the U.S., which points to many singles, couples and roommates and relatively few children. That is in line with the rest of Iowa.
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 51431
| Period | ZIP 51431 | Iowa | U.S. |
|---|---|---|---|
| 2006–10 | 45.6 | 38.8 | 37.7 |
| 2010–14 | 38.6 | 39.3 | 38.6 |
| 2015–19 | 44.2 | 39.7 | 39.6 |
| 2020–24 | 37.6 | 39.8 | 40.1 |
| Change | −8.0 | +1.0 | +2.3 |
ZIP 51431 is a little younger than the country as a whole: its median age is 37.6, against 40.1 nationally. Since 2006–10, the median age has dropped from 45.6, 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 51431
| Period | ZIP 51431 | Iowa | U.S. |
|---|---|---|---|
| 2006–10 | 4.8% | 9.5% | 12.3% |
| 2010–14 | 4.3% | 9.9% | 12.3% |
| 2015–19 | 8.9% | 10.0% | 11.6% |
| 2020–24 | 19.0% | 10.0% | 11.6% |
| Change | +14.2 pts | +0.6 pts | −0.6 pts |
Single parents head nearly one in five households in ZIP 51431 (19.0%), well above the national share of 11.6%.
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 51431
Renters in ZIP 51431
| Period | ZIP 51431 | Iowa | U.S. |
|---|---|---|---|
| 2006–10 | 17.1% | 26.8% | 33.3% |
| 2010–14 | 23.3% | 28.2% | 35.6% |
| 2015–19 | 16.9% | 28.9% | 36.0% |
| 2020–24 | 34.6% | 28.3% | 34.8% |
| Change | +17.6 pts | +1.5 pts | +1.5 pts |
Just over a third of households in ZIP 51431 rent their homes (34.6%), close to the national share of 34.8%. Renters make up a bigger share here than in Iowa overall (28.3%). Nearly six in ten owners (57.4%) have paid off their mortgages, 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 51431
| Period | ZIP 51431 | Iowa | U.S. |
|---|---|---|---|
| 2006–10 | 11.3% | 8.7% | 11.4% |
| 2010–14 | 4.0% | 8.6% | 11.4% |
| 2015–19 | 11.0% | 9.4% | 11.1% |
| 2020–24 | 4.7% | 8.8% | 9.6% |
| Change | −6.6 pts | +0.1 pts | −1.8 pts |
Empty homes are scarce in ZIP 51431: just 4.7% sit vacant, compared with 9.6% nationally, a sign of a tight housing market.
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 51431
| Period | ZIP 51431 | Iowa | U.S. |
|---|---|---|---|
| 2006–10 | 1938 | 1965 | 1974 |
| 2010–14 | 1942 | 1967 | 1975 |
| 2015–19 | 1952 | 1969 | 1977 |
| 2020–24 | 1949 | 1971 | 1980 |
| Change | +11 | +6 | +6 |
ZIP 51431 is a place of older homes: half were built before 1949, while the national median is 1980. That means established neighborhoods, and more houses that may need updating.
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 51431
| Period | ZIP 51431 | Iowa | U.S. |
|---|---|---|---|
| 2006–10 | $508 | $669 | $965 |
| 2010–14 | $426 | $732 | $1,040 |
| 2015–19 | $402 | $821 | $1,213 |
| 2020–24 | $652 | $1,020 | $1,571 |
| Change | +$145 | +$351 | +$606 |
The median renter in ZIP 51431 pays $652 a month for rent and utilities, well below the national median of $1,571. The typical renter here spends 17.9% of household income on rent, comfortably under the 30% mark often used to define affordable rent, and a smaller share than renters pay nationally.
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 51431
Bachelor's degrees in ZIP 51431
| Period | ZIP 51431 | Iowa | U.S. |
|---|---|---|---|
| 2006–10 | 21.9% | 26.5% | 28.4% |
| 2010–14 | 19.9% | 27.9% | 29.6% |
| 2015–19 | 13.1% | 29.3% | 32.1% |
| 2020–24 | 19.8% | 32.3% | 35.6% |
| Change | −2.1 pts | +5.8 pts | +7.2 pts |
Fewer adults in ZIP 51431 have a four-year degree than in the country as a whole: 19.8%, 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 51431
| Period | ZIP 51431 | Iowa | U.S. |
|---|---|---|---|
| 2006–10 | 90.4% | 90.4% | 84.9% |
| 2010–14 | 92.4% | 91.4% | 86.1% |
| 2015–19 | 95.0% | 92.1% | 87.7% |
| 2020–24 | 96.5% | 93.0% | 89.3% |
| Change | +6.0 pts | +2.7 pts | +4.3 pts |
High school completion is high in ZIP 51431: 96.5% of adults 25 and older have a diploma or equivalent, well above the national rate of 89.3%.
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 51431
| Period | ZIP 51431 | Iowa | U.S. |
|---|---|---|---|
| 2006–10 | 6.6% | 5.2% | 8.1% |
| 2010–14 | 0.6% | 5.4% | 9.4% |
| 2015–19 | 2.7% | 3.7% | 5.6% |
| 2020–24 | 0.4% | 3.7% | 5.4% |
| Change | −6.2 pts | −1.5 pts | −2.7 pts |
The job market in ZIP 51431 has been strong: just 0.4% of the labor force was out of work and looking, well below the national rate of 5.4%. 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 51431 compared with nearby ZIP codes
| ZIP code | Household size | Median age | Single parents | Renters | Vacant homes | Median year built | Median rent | Bachelor's degree | High school diploma | Unemployment |
|---|---|---|---|---|---|---|---|---|---|---|
| ZIP 51431 | 2.38 | 37.6 | 19.0% | 34.6% | 4.7% | 1949 | $652 | 19.8% | 96.5% | 0.4% |
| ZIP 51458 | 2.30 | 47.1 | 9.2% | 19.8% | 21.1% | 1955 | $641 | 20.9% | 94.2% | 3.2% |
| ZIP 51445 | 2.05 | 44.9 | 11.7% | 29.6% | 12.5% | 1960 | $697 | 22.1% | 96.2% | 4.1% |
| ZIP 51053 | 2.38 | 40.9 | 10.9% | 12.0% | 10.6% | 1940 | $748 | 20.3% | 89.7% | 2.6% |
| ZIP 50535 | 2.55 | 38.4 | 7.2% | 25.4% | 11.3% | 1947 | $640 | 21.5% | 91.2% | 9.0% |
| ZIP 51006 | 2.49 | 40.3 | 14.3% | 21.6% | 9.5% | 1940 | $527 | 15.8% | 94.7% | 1.5% |
| ZIP 51466 | 2.13 | 47.6 | 15.9% | 15.3% | 6.9% | 1965 | $640 | 17.7% | 93.6% | 2.6% |
| ZIP 51025 | 2.21 | 39.8 | 9.7% | 24.5% | 3.7% | 1955 | $803 | 29.7% | 92.1% | 0.9% |
| ZIP 51450 | 2.05 | 55.3 | 7.1% | 15.7% | 26.0% | 1957 | $732 | 29.2% | 96.8% | 1.7% |
| ZIP 51018 | 2.75 | 36.7 | 9.8% | 22.2% | 4.1% | 1953 | $862 | 10.7% | 91.2% | 0.4% |
| ZIP 50583 | 2.14 | 46.1 | 6.9% | 26.8% | 13.3% | 1958 | $825 | 22.7% | 91.7% | 3.5% |
All figures 2020–24.
Zip codes with similar populations: 88348, NM · 16343, PA · 16691, PA · 16853, PA · 16859, PA · 16868, PA · 17211, PA · 17215, PA · 21677, MD · 22438, VA
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 51431. 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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