Population 6,318 · Census ACS 2020–24
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Population and households in ZIP 51537
Household size in ZIP 51537
| Period | ZIP 51537 | Iowa | U.S. |
|---|---|---|---|
| 2006–10 | 2.29 | 2.44 | 2.68 |
| 2010–14 | 2.27 | 2.45 | 2.73 |
| 2015–19 | 2.22 | 2.43 | 2.71 |
| 2020–24 | 2.55 | 2.43 | 2.65 |
| Change | +0.26 | −0.01 | −0.03 |
The average household in ZIP 51537 has 2.55 people, a bit under the U.S. average of 2.65. Even so, the typical household here is bigger than in Iowa as a whole, where it has 2.43 people. Since 2006–10, household size has climbed from 2.29, even as the national average fell.
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 51537
| Period | ZIP 51537 | Iowa | U.S. |
|---|---|---|---|
| 2006–10 | 43.3 | 38.8 | 37.7 |
| 2010–14 | 44.8 | 39.3 | 38.6 |
| 2015–19 | 45.5 | 39.7 | 39.6 |
| 2020–24 | 44.4 | 39.8 | 40.1 |
| Change | +1.1 | +1.0 | +2.3 |
With a median age of 44.4, ZIP 51537 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 climbed from 43.3, mirroring the country. The youngest areas are in the southeast, the oldest in the north.
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 51537
| Period | ZIP 51537 | Iowa | U.S. |
|---|---|---|---|
| 2006–10 | 7.6% | 9.5% | 12.3% |
| 2010–14 | 7.9% | 9.9% | 12.3% |
| 2015–19 | 7.2% | 10.0% | 11.6% |
| 2020–24 | 7.5% | 10.0% | 11.6% |
| Change | −0.1 pts | +0.6 pts | −0.6 pts |
Single-parent households are relatively rare in ZIP 51537: 7.5% of households, against 11.6% nationally. Compared with other Iowa ZIP codes, ZIP 51537 has a lower share of single-parent households than most.
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 51537
Renters in ZIP 51537
| Period | ZIP 51537 | Iowa | U.S. |
|---|---|---|---|
| 2006–10 | 25.6% | 26.8% | 33.3% |
| 2010–14 | 25.7% | 28.2% | 35.6% |
| 2015–19 | 24.5% | 28.9% | 36.0% |
| 2020–24 | 23.7% | 28.3% | 34.8% |
| Change | −1.9 pts | +1.5 pts | +1.5 pts |
Only 23.7% of households in ZIP 51537 rent their homes, far below the national share of 34.8%, so most residents are owners who tend to stay put. Among homeowners, 44.6% have no mortgage at all, above the national share of 39.8%. Rentals cluster in the north; owners are most common in the southeast. The renter share is down 1.9 points from 2006–10, even as the national share rose.
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 51537
| Period | ZIP 51537 | Iowa | U.S. |
|---|---|---|---|
| 2006–10 | 10.1% | 8.7% | 11.4% |
| 2010–14 | 7.9% | 8.6% | 11.4% |
| 2015–19 | 12.3% | 9.4% | 11.1% |
| 2020–24 | 13.6% | 8.8% | 9.6% |
| Change | +3.5 pts | +0.1 pts | −1.8 pts |
Vacancy is high in ZIP 51537: 13.6% of homes are empty, far above the national rate of 9.6%. In resort and lake areas that usually means seasonal and vacation homes; elsewhere it can point to weak demand. Vacancy has risen 3.5 points since 2006–10, even as the national rate fell.
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 51537
| Period | ZIP 51537 | Iowa | U.S. |
|---|---|---|---|
| 2006–10 | 1956 | 1965 | 1974 |
| 2010–14 | 1955 | 1967 | 1975 |
| 2015–19 | 1956 | 1969 | 1977 |
| 2020–24 | 1960 | 1971 | 1980 |
| Change | +4 | +6 | +6 |
The housing in ZIP 51537 is old by national standards: the median home dates to 1960, against 1980 for the U.S., so buyers will find more older houses, some of them due for updates. The median year built has moved up from 1956 in 2006–10, a sign of steady new building. Newer construction is concentrated in the north, while the center has the oldest housing.
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 51537
| Period | ZIP 51537 | Iowa | U.S. |
|---|---|---|---|
| 2006–10 | $586 | $669 | $965 |
| 2010–14 | $672 | $732 | $1,040 |
| 2015–19 | $686 | $821 | $1,213 |
| 2020–24 | $781 | $1,020 | $1,571 |
| Change | +$195 | +$351 | +$606 |
A typical rental in ZIP 51537 costs $781 a month with utilities, well below the national median of $1,571. Rent has climbed $195 a month since 2006–10, up 33%, a slower climb than the nation's. The typical renter here spends 30.5% of household income on rent, just over the 30% mark often used to define affordable rent. Rents run highest in the north and lowest in the southeast.
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 51537
Bachelor's degrees in ZIP 51537
| Period | ZIP 51537 | Iowa | U.S. |
|---|---|---|---|
| 2006–10 | 18.3% | 26.5% | 28.4% |
| 2010–14 | 23.6% | 27.9% | 29.6% |
| 2015–19 | 25.3% | 29.3% | 32.1% |
| 2020–24 | 25.7% | 32.3% | 35.6% |
| Change | +7.4 pts | +5.8 pts | +7.2 pts |
About a quarter of adults 25 and older in ZIP 51537 (25.7%) have a bachelor's degree or higher, below the national share of 35.6%. Since 2006–10, the share with a degree has risen 7.4 points, mirroring the country. College graduates are most concentrated in the southeast and least in the center.
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 51537
| Period | ZIP 51537 | Iowa | U.S. |
|---|---|---|---|
| 2006–10 | 91.7% | 90.4% | 84.9% |
| 2010–14 | 91.9% | 91.4% | 86.1% |
| 2015–19 | 91.4% | 92.1% | 87.7% |
| 2020–24 | 94.7% | 93.0% | 89.3% |
| Change | +3.1 pts | +2.7 pts | +4.3 pts |
High school completion is high in ZIP 51537: 94.7% of adults 25 and older have a diploma or equivalent, well above the national rate of 89.3%. The share with a diploma is up 3.1 points from 2006–10, in line with the national trend.
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 51537
| Period | ZIP 51537 | Iowa | U.S. |
|---|---|---|---|
| 2006–10 | 4.9% | 5.2% | 8.1% |
| 2010–14 | 2.5% | 5.4% | 9.4% |
| 2015–19 | 2.4% | 3.7% | 5.6% |
| 2020–24 | 3.9% | 3.7% | 5.4% |
| Change | −1.0 pts | −1.5 pts | −2.7 pts |
Unemployment in ZIP 51537 runs below the national rate: 3.9% of the labor force was out of work and looking, against 5.4% nationally. Unemployment is down 1.0 points from 2006–10, mirroring the country. 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 51537 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 51537 | 2.55 | 44.4 | 7.5% | 23.7% | 13.6% | 1960 | $781 | 25.7% | 94.7% | 3.9% |
| ZIP 51578 | 2.11 | 41.8 | 6.7% | 17.6% | 4.6% | 1938 | $940 | 22.0% | 98.6% | 1.1% |
| ZIP 51447 | 2.34 | 43.8 | 8.7% | 20.0% | 9.3% | 1951 | $774 | 23.7% | 96.1% | 1.7% |
| ZIP 51562 | 2.13 | 45.0 | 5.0% | 16.0% | 3.8% | 1943 | $822 | 22.4% | 97.0% | 0.8% |
| ZIP 51530 | 2.09 | 44.2 | 6.4% | 19.8% | 13.9% | 1949 | $856 | 26.1% | 96.8% | 3.1% |
| ZIP 51565 | 2.20 | 49.4 | 3.0% | 15.8% | 3.2% | 1953 | $687 | 20.9% | 93.3% | 0.8% |
| ZIP 51446 | 2.37 | 49.1 | 15.6% | 25.6% | 3.9% | 1939 | $713 | 19.7% | 98.3% | 0.4% |
| ZIP 51570 | 2.33 | 39.1 | 5.4% | 24.1% | 10.0% | 1943 | $872 | 17.2% | 95.6% | 4.9% |
| ZIP 51543 | 2.91 | 40.1 | 5.8% | 15.8% | 16.4% | 1941 | $995 | 14.8% | 96.4% | 1.2% |
| ZIP 51531 | 2.24 | 47.4 | 9.3% | 24.6% | 14.7% | 1938 | $720 | 28.4% | 95.4% | 1.2% |
| ZIP 51563 | 2.72 | 37.6 | 5.8% | 19.3% | 1.4% | 1972 | $1,015 | 18.8% | 98.4% | 1.7% |
All figures 2020–24.
Zip codes with similar populations: 01860, MA · 12158, NY · 10590, NY · 87901, NM · 87557, NM · 87313, NM · 85622, AZ · 08533, NJ · 49087, MI · 48003, MI
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 51537. 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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