Iona, NJ Demographics

Population 397 · Census ACS 2020–24

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Iona, NJ map of median age by neighborhood
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Population and households in Iona

Household size in Iona

Household size, people per household
PeriodIonaPhiladelphia areaNew JerseyU.S.
2006–102.532.642.772.68
2010–142.782.682.822.73
2015–192.852.652.782.71
2020–242.672.572.762.65
Change+0.14−0.07−0.01−0.03
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Households in Iona average 2.67 people, about the same as the country as a whole (2.65). The typical household here is bigger than in the Philadelphia area as a whole, where it has 2.57 people. Household size has climbed from 2.53 in 2006–10, but in a place this small, much of that may be survey noise rather than real change.

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 Iona

Median age, years
PeriodIonaPhiladelphia areaNew JerseyU.S.
2006–1041.738.539.137.7
2010–1441.739.340.038.6
2015–1941.840.341.039.6
2020–2443.140.440.940.1
Change+1.4+1.9+1.8+2.3
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The median resident of Iona is 43.1 years old, older than the national median of 40.1.

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 Iona

Single-parent households, % of households
PeriodIonaPhiladelphia areaNew JerseyU.S.
2006–1019.2%12.2%11.6%12.3%
2010–1414.3%11.8%11.8%12.3%
2015–1915.2%11.7%10.8%11.6%
2020–2412.2%12.1%11.3%11.6%
Change−7.0 pts−0.1 pts−0.4 pts−0.6 pts
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Single parents head about one in eight households in Iona (12.2%), close to 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 Iona

Renters in Iona

Renters, % of occupied homes
PeriodIonaPhiladelphia areaNew JerseyU.S.
2006–1016.1%30.2%33.1%33.3%
2010–1420.1%32.1%35.0%35.6%
2015–1913.8%32.7%36.1%36.0%
2020–2418.2%33.2%36.2%34.8%
Change+2.1 pts+3.0 pts+3.1 pts+1.5 pts
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Only 18.2% of households in Iona rent their homes, far below the national share of 34.8%, so most residents are owners who tend to stay put. Among homeowners, 32.0% have no mortgage at all, below 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 Iona

Vacant homes, % of all homes
PeriodIonaPhiladelphia areaNew JerseyU.S.
2006–103.9%9.1%9.1%11.4%
2010–1410.7%9.2%9.3%11.4%
2015–193.8%9.0%9.3%11.1%
2020–2410.2%6.9%6.6%9.6%
Change+6.2 pts−2.2 pts−2.5 pts−1.8 pts
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About as many homes sit empty in Iona as nationally: 10.2%, against 9.6%. The rate is higher than in the Philadelphia area as a whole (6.9%).

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 Iona

Age of homes, median year built
PeriodIonaPhiladelphia areaNew JerseyU.S.
2006–101962196419651974
2010–141975196519661975
2015–191975196519671977
2020–241975196819691980
Change+13+4+5+6
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Homes in Iona run a bit older than the national norm, with a median build year of 1975 against 1980. Even so, homes here are newer than in the Philadelphia area overall, where the median home dates to 1968.

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 Iona

Rent, per month
PeriodIonaPhiladelphia areaNew JerseyU.S.
2006–10$915$1,049$1,246$965
2010–14$1,270$1,147$1,324$1,040
2015–19$1,261$1,281$1,522$1,213
2020–24$1,683$1,631$1,896$1,571
Change+$768+$582+$651+$606
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Rent in Iona runs $1,683 a month at the median, utilities included, above the U.S. median of $1,571. That is in line with the rest of the Philadelphia area. The typical renter here spends 50.2% of household income on rent, well over the 30% mark often used to define affordable rent, so many renters here are stretched.

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 Iona

Bachelor's degrees in Iona

Bachelor's degrees, % of adults 25+
PeriodIonaPhiladelphia areaNew JerseyU.S.
2006–1016.1%32.7%34.7%28.4%
2010–1419.7%34.4%36.4%29.6%
2015–1917.4%37.9%39.6%32.1%
2020–2423.5%42.3%43.4%35.6%
Change+7.4 pts+9.6 pts+8.6 pts+7.2 pts
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Fewer adults in Iona have a four-year degree than in the country as a whole: 23.5%, 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 Iona

High school graduates, % of adults 25+
PeriodIonaPhiladelphia areaNew JerseyU.S.
2006–1085.0%87.5%87.0%84.9%
2010–1488.7%88.9%88.1%86.1%
2015–1981.4%90.5%89.5%87.7%
2020–2485.7%91.9%90.2%89.3%
Change+0.7 pts+4.4 pts+3.2 pts+4.3 pts
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About one in seven adults in Iona never finished high school, more than nationally: 85.7% have a diploma or equivalent, against 89.3% across the U.S.

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 Iona

Unemployment, % of the labor force
PeriodIonaPhiladelphia areaNew JerseyU.S.
2006–107.0%8.4%7.9%8.1%
2010–149.8%10.2%9.8%9.4%
2015–1913.6%6.3%5.6%5.6%
2020–246.8%6.1%6.4%5.4%
Change−0.2 pts−2.3 pts−1.5 pts−2.7 pts
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Jobs have been harder to find in Iona than nationally: unemployment was 6.8%, against 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).

Iona compared with nearby cities

CityHousehold sizeMedian ageSingle parentsRentersVacant homesMedian year builtMedian rentBachelor's degreeHigh school diplomaUnemployment
Iona2.6743.112.2%18.2%10.2%1975$1,68323.5%85.7%6.8%
Franklinville2.8543.910.3%11.0%6.9%1982$1,61424.2%90.0%5.6%
Clayton2.6739.214.2%17.9%6.7%1979$1,39024.2%93.6%6.9%
Malaga2.7845.914.6%22.6%10.8%1978$1,33726.3%92.5%5.4%
Monroeville3.0342.55.5%7.7%6.6%1979$1,50934.8%94.0%4.7%
Newfield3.0039.717.9%12.1%10.0%1976$1,50026.3%94.5%8.6%
Friendship2.8441.56.2%9.4%3.2%1971$1,57827.0%94.3%6.6%
Elmer2.7247.37.6%15.0%5.7%1971$1,43525.4%89.9%5.1%
Greenville2.9447.14.1%10.9%2.3%1977$1,23228.4%93.1%10.9%
Williamstown2.7842.312.3%15.3%6.1%1988$1,55031.1%93.5%6.7%
Glassboro2.4233.19.2%38.9%10.5%1983$1,79947.0%92.4%7.5%

All figures 2020–24.

Cities with similar populations: English Lake, IN · Donegal, MS · Douds, IA · Woodrow, KY · Drake, ND · Dunbar, NE · Woodmans Mills, ME · Duplainville, WI · Woodhaven, LA · Dutch Flat, CA

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 Iona. 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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