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HomeIowaHancock CountyCrystal Lake

Crystal Lake, Iowa: commercial real estate data.

Crystal Lake is a Census city of 283 people across 0.25 square miles of land, in Hancock County. Median household income is $66,875, 85.8 percent of occupied homes are owned.

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

This is a small place, and the figures below carry wide margins.

The American Community Survey reaches Crystal Lake through a sample, not a count, and in a place this size that sample is thin. The population estimate here is 283 with a margin of error of plus or minus 142, which is 50.2 percent of the estimate itself. Every figure whose margin reaches 20 percent is printed with that margin beside it, so you can see the width of each one rather than having to assume it.

Nothing has been removed or adjusted. These are the published federal estimates, shown with the uncertainty the Census publishes alongside them.

Crystal Lake

What Crystal Lake is

  • Census place typecity
  • Land area0.25 sq mi
  • Water area0 sq mi
  • Population per square mile of land1,141 plus or minus 573
  • County holding the largest share of its areaHancock 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.

Crystal Lake

How many people live in Crystal Lake

  • Population283 plus or minus 142
  • Median age33.9 plus or minus 14.9
  • Population under 1864 plus or minus 45
  • Share under 1822.6 percent plus or minus 10.9
  • Population 65 and over57 plus or minus 24
  • Share 65 and over20.1 percent plus or minus 13.1
  • Households134 plus or minus 52
  • Family households88 plus or minus 47
  • Share of households that are families65.7 percent plus or minus 24.1

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

Crystal Lake

Income and work in Crystal Lake

  • Median household income$66,875 plus or minus $47,980
  • Per capita income$32,801
  • Civilian labor force151 plus or minus 78
  • Employed150 plus or minus 78
  • Unemployed1 plus or minus 2
  • Unemployment rate0.7 percent plus or minus 1.3
  • Adults 25 and over202 plus or minus 80
  • Adults 25 and over with a high school diploma or higher91.1 percent
  • Adults 25 and over with a bachelor degree or higher9.4 percent plus or minus 8.0
  • Adults 25 and over with a graduate degree1.0 percent plus or minus 5.5

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

Crystal Lake

Housing in Crystal Lake

  • Housing units134 plus or minus 52
  • Occupied units134 plus or minus 52
  • Vacant units0
  • Vacancy rate0.0 percent
  • Owner occupied115 plus or minus 49
  • Renter occupied19 plus or minus 20
  • Ownership rate85.8 percent
  • Median owner-occupied home value$100,300
  • Median gross rent, monthly$911 plus or minus $401
  • Annual rent as a share of median income16.3 percent plus or minus 13.8
  • Single family units128 plus or minus 53
  • Share single family95.5 percent
  • Units in buildings of two or more3 plus or minus 11
  • Share in buildings of two or more2.2 percent plus or minus 8.3
  • Mobile homes3 plus or minus 4
  • Median year structure built1950

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

Crystal Lake

How Crystal Lake gets to work

  • Workers 16 and over who commute140 plus or minus 77
  • Commuting under 15 minutes22 plus or minus 20
  • Share commuting under 15 minutes15.7 percent plus or minus 11.3
  • Commuting 30 minutes or more70 plus or minus 53
  • Share commuting 30 minutes or more50.0 percent plus or minus 26.3
  • Drove alone70.0 percent plus or minus 29.2
  • Carpooled23.3 percent plus or minus 19.1
  • Public transport0.0 percent
  • Walked0.0 percent
  • Worked from home6.7 percent plus or minus 4.9

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

Crystal Lake

Flood risk in Crystal Lake

  • NFIP communityCity of Crystal Lake
  • NFIP community number190724
  • Participating in the NFIPNo
  • Community Rating System classNone
  • Currently effective map date04/04/18

The City of Crystal Lake does not participate in the National Flood Insurance Program as community 190724 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.

Hancock County, not Crystal Lake

Hancock County context, not Crystal Lake figures

  • Establishments in Hancock County302
  • Covered employment, Hancock County5,982
  • Average annual pay, Hancock County$59,900
  • Housing units permitted, Hancock County13

Every figure in this section is published for Hancock County as a whole and is not a measurement of Crystal Lake.

All Hancock 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

Crystal Lake questions, answered from the record.

How many people live in Crystal Lake, Iowa?

283, in 134 households. Crystal Lake city covers 0.25 square miles of land, which is 1,141 people per square mile. Source: US Census Bureau, American Community Survey 5-Year Estimates, place level, 2020-2024 5-year.

What county is Crystal Lake in?

Hancock 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 Crystal Lake?

$66,875. The median owner-occupied home is valued at $100,300. Median gross rent is $911 per month. Source: US Census Bureau, American Community Survey 5-Year Estimates, place level, 2020-2024 5-year.

Is Crystal Lake in the National Flood Insurance Program?

No, it is listed but not participating. Crystal Lake appears in the FEMA Community Status Book as Crystal Lake, city of, community 190724, 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 Crystal Lake figures?

No, and they are labeled so. County Business Patterns, QCEW, the Building Permits Survey, BEA product and IRS migration are published for Hancock 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 Crystal Lake.

Is zoning published for Crystal Lake?

No. Nothing on this page presents parcel level zoning.