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HomeIowaJones CountyOnslow

Onslow, Iowa: commercial real estate data.

Onslow is a Census city of 284 people across 0.19 square miles of land, in Jones County. Median household income is $65,313, 79.2 percent of occupied homes are owned.

Underlined figures are computed by MMCG Analytics, not published by the agency.

Onslow

What Onslow is

  • Census place typecity
  • Land area0.19 sq mi
  • Water area0 sq mi
  • Population per square mile of land1,464 plus or minus 448
  • County holding the largest share of its areaJones County, 100.0 percent

US Census Bureau, cartographic boundary file, places, 2024 vintage. US Census Bureau, American Community Survey 5-Year Estimates, place level, 2020-2024 5-year.

Onslow

How many people live in Onslow

  • Population284 plus or minus 87
  • Median age30.0 plus or minus 11.9
  • Population under 18111 plus or minus 40
  • Share under 1839.1 percent
  • Population 65 and over18 plus or minus 16
  • Share 65 and over6.3 percent plus or minus 5.4
  • Households96 plus or minus 30
  • Family households71 plus or minus 27
  • Share of households that are families74.0 percent plus or minus 16.0

US Census Bureau, American Community Survey 5-Year Estimates, place level, 2020-2024 5-year.

Onslow

Income and work in Onslow

  • Median household income$65,313 plus or minus $34,940
  • Per capita income$23,210 plus or minus $5,373
  • Civilian labor force119 plus or minus 40
  • Employed119 plus or minus 40
  • Unemployed0
  • Unemployment rate0.0 percent
  • Adults 25 and over149 plus or minus 46
  • Adults 25 and over with a high school diploma or higher99.3 percent plus or minus 42.8
  • Adults 25 and over with a bachelor degree or higher14.8 percent plus or minus 10.4
  • Adults 25 and over with a graduate degree4.0 percent plus or minus 8.5

US Census Bureau, American Community Survey 5-Year Estimates, place level, 2020-2024 5-year.

Onslow

Housing in Onslow

  • Housing units112 plus or minus 34
  • Occupied units96 plus or minus 30
  • Vacant units16 plus or minus 14
  • Vacancy rate14.3 percent plus or minus 11.7
  • Owner occupied76 plus or minus 28
  • Renter occupied20 plus or minus 15
  • Ownership rate79.2 percent
  • Median owner-occupied home value$100,000
  • Median gross rent, monthly$1,250 plus or minus $1,156
  • Annual rent as a share of median income23.0 percent plus or minus 24.5
  • Single family units105 plus or minus 33
  • Share single family93.8 percent
  • Units in buildings of two or more7 plus or minus 14
  • Share in buildings of two or more6.3 percent plus or minus 12.0
  • Mobile homes0
  • Median year structure built1938

US Census Bureau, American Community Survey 5-Year Estimates, place level, 2020-2024 5-year.

Onslow

How Onslow gets to work

  • Workers 16 and over who commute116 plus or minus 39
  • Commuting under 15 minutes9 plus or minus 13
  • Share commuting under 15 minutes7.8 percent plus or minus 11.0
  • Commuting 30 minutes or more43 plus or minus 20
  • Share commuting 30 minutes or more37.1 percent plus or minus 12.2
  • Drove alone84.9 percent
  • Carpooled12.6 percent plus or minus 10.1
  • Public transport0.0 percent
  • Walked0.0 percent
  • Worked from home2.5 percent plus or minus 3.3

US Census Bureau, American Community Survey 5-Year Estimates, place level, 2020-2024 5-year.

Onslow

Flood risk in Onslow

  • NFIP communityCity of Onslow
  • NFIP community number190791
  • Participating in the NFIPYes
  • Community Rating System classNone
  • Currently effective map date(NSFHA)

The City of Onslow participates in the National Flood Insurance Program as community 190791 and carries no Community Rating System class, so no CRS premium discount applies to it.

Federal Emergency Management Agency, NFIP Community Status Book (OpenFEMA), as of 2026-09-26.

Jones County, not Onslow

Jones County context, not Onslow figures

  • Establishments in Jones County514
  • Covered employment, Jones County6,253
  • Average annual pay, Jones County$50,095
  • Housing units permitted, Jones County20

Every figure in this section is published for Jones County as a whole and is not a measurement of Onslow.

All Jones County figures →

US Census Bureau, County Business Patterns, 2023. US Bureau of Labor Statistics, Quarterly Census of Employment and Wages, 2024 annual averages. US Census Bureau, Building Permits Survey, 2024 annual.

Coverage

What this page does not hold.

Parcel detail, zoning and the flood zone at an address are not on this page; they resolve at the address in the platform. How this page was built →

Common questions

Onslow questions, answered from the record.

How many people live in Onslow, Iowa?

284, in 96 households. Onslow city covers 0.19 square miles of land, which is 1,464 people per square mile. Source: US Census Bureau, American Community Survey 5-Year Estimates, place level, 2020-2024 5-year.

What county is Onslow in?

Jones County, which holds 100.0 percent of the place by area. Source: US Census Bureau, cartographic boundary file, places, 2024 vintage.

What is the median household income in Onslow?

$65,313. The median owner-occupied home is valued at $100,000. Median gross rent is $1,250 per month. Source: US Census Bureau, American Community Survey 5-Year Estimates, place level, 2020-2024 5-year.

Is Onslow in the National Flood Insurance Program?

Yes. Onslow appears in the FEMA Community Status Book as Onslow, city of, community 190791, with no Community Rating System class, so no CRS discount applies. Whether a specific parcel sits in a mapped special flood hazard area is an address level question the platform answers.

Are the county figures on this page Onslow figures?

No, and they are labeled so. County Business Patterns, QCEW, the Building Permits Survey, BEA product and IRS migration are published for Jones County as a whole and there is no place level equivalent. They appear in one clearly marked section as context and are never presented as measurements of Onslow.

Is zoning published for Onslow?

No. Nothing on this page presents parcel level zoning.