Population 1,472 · Census ACS 2020–24
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Population and households in ZIP 51640
Household size in ZIP 51640
| Period | ZIP 51640 | Iowa | U.S. |
|---|---|---|---|
| 2006–10 | 2.30 | 2.44 | 2.68 |
| 2010–14 | 2.38 | 2.45 | 2.73 |
| 2015–19 | 2.25 | 2.43 | 2.71 |
| 2020–24 | 2.36 | 2.43 | 2.65 |
| Change | +0.06 | −0.01 | −0.03 |
ZIP 51640 is a place of small households, averaging 2.36 people against 2.65 for the U.S., which points to many singles, couples and roommates and relatively few children. The picture is much the same across 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 51640
| Period | ZIP 51640 | Iowa | U.S. |
|---|---|---|---|
| 2006–10 | 42.7 | 38.8 | 37.7 |
| 2010–14 | 42.4 | 39.3 | 38.6 |
| 2015–19 | 48.7 | 39.7 | 39.6 |
| 2020–24 | 43.2 | 39.8 | 40.1 |
| Change | +0.5 | +1.0 | +2.3 |
ZIP 51640 skews older than the country: its median age is 43.2, against 40.1 nationally.
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 51640
| Period | ZIP 51640 | Iowa | U.S. |
|---|---|---|---|
| 2006–10 | 12.0% | 9.5% | 12.3% |
| 2010–14 | 13.7% | 9.9% | 12.3% |
| 2015–19 | 13.4% | 10.0% | 11.6% |
| 2020–24 | 5.4% | 10.0% | 11.6% |
| Change | −6.6 pts | +0.6 pts | −0.6 pts |
Single parents head only 5.4% of households in ZIP 51640, well below the national share of 11.6%. Since 2006–10, the single-parent share has fallen 6.6 points, but in a place this small, survey estimates can swing a lot from one release to the next.
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 51640
Renters in ZIP 51640
| Period | ZIP 51640 | Iowa | U.S. |
|---|---|---|---|
| 2006–10 | 26.4% | 26.8% | 33.3% |
| 2010–14 | 28.3% | 28.2% | 35.6% |
| 2015–19 | 23.2% | 28.9% | 36.0% |
| 2020–24 | 19.0% | 28.3% | 34.8% |
| Change | −7.3 pts | +1.5 pts | +1.5 pts |
Only 19.0% of households in ZIP 51640 rent their homes, far below the national share of 34.8%, so most residents are owners who tend to stay put. Just over half of owners (52.1%) 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 51640
| Period | ZIP 51640 | Iowa | U.S. |
|---|---|---|---|
| 2006–10 | 9.8% | 8.7% | 11.4% |
| 2010–14 | 16.8% | 8.6% | 11.4% |
| 2015–19 | 14.5% | 9.4% | 11.1% |
| 2020–24 | 13.2% | 8.8% | 9.6% |
| Change | +3.4 pts | +0.1 pts | −1.8 pts |
More homes sit empty in ZIP 51640 than nationally: 13.2%, against 9.6%. The count includes vacation homes and homes between owners or tenants, not just abandoned ones.
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 51640
| Period | ZIP 51640 | Iowa | U.S. |
|---|---|---|---|
| 2006–10 | 1956 | 1965 | 1974 |
| 2010–14 | 1958 | 1967 | 1975 |
| 2015–19 | 1961 | 1969 | 1977 |
| 2020–24 | 1953 | 1971 | 1980 |
| Change | −3 | +6 | +6 |
The housing in ZIP 51640 is old by national standards: the median home dates to 1953, against 1980 for the U.S., so buyers will find more older houses, some of them due for updates.
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 51640
| Period | ZIP 51640 | Iowa | U.S. |
|---|---|---|---|
| 2006–10 | $456 | $669 | $965 |
| 2010–14 | $646 | $732 | $1,040 |
| 2015–19 | $648 | $821 | $1,213 |
| 2020–24 | $726 | $1,020 | $1,571 |
| Change | +$270 | +$351 | +$606 |
The median renter in ZIP 51640 pays $726 a month for rent and utilities, well below the national median of $1,571. Rent takes 18.2% 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 51640
Bachelor's degrees in ZIP 51640
| Period | ZIP 51640 | Iowa | U.S. |
|---|---|---|---|
| 2006–10 | 14.5% | 26.5% | 28.4% |
| 2010–14 | 23.9% | 27.9% | 29.6% |
| 2015–19 | 14.3% | 29.3% | 32.1% |
| 2020–24 | 19.4% | 32.3% | 35.6% |
| Change | +5.0 pts | +5.8 pts | +7.2 pts |
College degrees are relatively uncommon in ZIP 51640: 19.4% of adults 25 and older hold a bachelor's or higher, well below the national share of 35.6%.
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 51640
| Period | ZIP 51640 | Iowa | U.S. |
|---|---|---|---|
| 2006–10 | 88.5% | 90.4% | 84.9% |
| 2010–14 | 90.3% | 91.4% | 86.1% |
| 2015–19 | 92.4% | 92.1% | 87.7% |
| 2020–24 | 96.8% | 93.0% | 89.3% |
| Change | +8.3 pts | +2.7 pts | +4.3 pts |
High school completion is high in ZIP 51640: 96.8% 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 51640
| Period | ZIP 51640 | Iowa | U.S. |
|---|---|---|---|
| 2006–10 | 2.7% | 5.2% | 8.1% |
| 2010–14 | 3.9% | 5.4% | 9.4% |
| 2015–19 | 5.9% | 3.7% | 5.6% |
| 2020–24 | 1.0% | 3.7% | 5.4% |
| Change | −1.7 pts | −1.5 pts | −2.7 pts |
The job market in ZIP 51640 has been strong: just 1.0% of the labor force was out of work and looking, well below the national rate of 5.4%. Each figure pools five years of surveys (2020–24), so it describes that whole stretch rather than today's 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 51640 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 51640 | 2.36 | 43.2 | 5.4% | 19.0% | 13.2% | 1953 | $726 | 19.4% | 96.8% | 1.0% |
| ZIP 51650 | 2.00 | 49.7 | 4.8% | 24.9% | 9.4% | 1955 | $771 | 15.8% | 95.1% | 1.5% |
| ZIP 51652 | 2.32 | 45.8 | 7.7% | 19.2% | 15.0% | 1964 | $769 | 18.5% | 92.3% | 0.6% |
| ZIP 51639 | 2.07 | 49.6 | 4.5% | 24.9% | 8.3% | 1952 | $798 | 17.8% | 94.4% | 1.5% |
| ZIP 51648 | 2.28 | 48.7 | 7.2% | 23.8% | 10.1% | 1976 | $1,427 | 23.1% | 88.0% | 0.0% |
| ZIP 68410 | 2.67 | 40.8 | 11.4% | 22.4% | 10.0% | 1966 | $945 | 25.6% | 91.2% | 2.4% |
| ZIP 68379 | 2.63 | 43.4 | 6.6% | 15.7% | 20.0% | 1946 | $754 | 31.0% | 96.5% | 11.9% |
| ZIP 51601 | 2.24 | 45.2 | 8.9% | 38.5% | 13.8% | 1953 | $736 | 19.7% | 94.4% | 5.9% |
| ZIP 51647 | 2.34 | 52.9 | 6.5% | 14.4% | 6.3% | 1938 | $694 | 18.4% | 94.7% | 7.4% |
| ZIP 64498 | 2.28 | 46.1 | 12.0% | 14.7% | 16.8% | 1939 | $631 | 16.9% | 91.9% | 0.0% |
| ZIP 68382 | 2.11 | 56.0 | 6.0% | 23.8% | 12.6% | 1938 | $1,293 | 34.3% | 86.8% | 7.8% |
All figures 2020–24.
Zip codes with similar populations: 14894, NY · 22937, VA · 23106, VA · 18211, PA · 17959, PA · 16360, PA · 16317, PA · 15687, PA · 13680, NY · 13054, NY
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 51640. 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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