HomeIllinoisKnox CountyWilliamsfield
Williamsfield, Illinois: commercial real estate data.
Williamsfield is a Census village of 531 people across 1.23 square miles of land, in Knox County. Median household income is $82,417, 94.1 percent of occupied homes are owned.
Underlined figures are computed by MMCG Analytics, not published by the agency.
Williamsfield
What Williamsfield is
- Census place typevillage
- Land area1.23 sq mi
- Water area0 sq mi
- Population per square mile of land431 plus or minus 128
- County holding the largest share of its areaKnox 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.
Williamsfield
How many people live in Williamsfield
- Population531 plus or minus 158
- Median age44.6 plus or minus 12.9
- Population under 18107 plus or minus 76
- Share under 1820.2 percent plus or minus 13.0
- Population 65 and over107 plus or minus 32
- Share 65 and over20.2 percent plus or minus 8.5
- Households219 plus or minus 47
- Family households150 plus or minus 43
- Share of households that are families68.5 percent
US Census Bureau, American Community Survey 5-Year Estimates, place level, 2020-2024 5-year.
Williamsfield
Income and work in Williamsfield
- Median household income$82,417
- Per capita income$43,196
- Civilian labor force287 plus or minus 76
- Employed279 plus or minus 77
- Unemployed8 plus or minus 9
- Unemployment rate2.8 percent plus or minus 3.0
- Adults 25 and over365 plus or minus 83
- Adults 25 and over with a high school diploma or higher97.0 percent plus or minus 29.2
- Adults 25 and over with a bachelor degree or higher19.5 percent plus or minus 9.0
- Adults 25 and over with a graduate degree3.0 percent plus or minus 4.3
US Census Bureau, American Community Survey 5-Year Estimates, place level, 2020-2024 5-year.
Williamsfield
Housing in Williamsfield
- Housing units239 plus or minus 50
- Occupied units219 plus or minus 47
- Vacant units20 plus or minus 20
- Vacancy rate8.4 percent plus or minus 8.2
- Owner occupied206 plus or minus 46
- Renter occupied13 plus or minus 12
- Ownership rate94.1 percent
- Median owner-occupied home value$109,800
- Median gross rent, monthly$617 plus or minus $139
- Annual rent as a share of median income9.0 percent plus or minus 2.2
- Single family units235 plus or minus 51
- Share single family98.3 percent
- Units in buildings of two or more4 plus or minus 14
- Share in buildings of two or more1.7 percent plus or minus 5.7
- Mobile homes0
- Median year structure built1971
US Census Bureau, American Community Survey 5-Year Estimates, place level, 2020-2024 5-year.
Williamsfield
How Williamsfield gets to work
- Workers 16 and over who commute257 plus or minus 77
- Commuting under 15 minutes84 plus or minus 31
- Share commuting under 15 minutes32.7 percent plus or minus 7.3
- Commuting 30 minutes or more91 plus or minus 29
- Share commuting 30 minutes or more35.4 percent
- Drove alone89.6 percent
- Carpooled1.1 percent plus or minus 1.5
- Public transport0.0 percent
- Walked4.8 percent plus or minus 5.4
- Worked from home4.5 percent plus or minus 2.7
US Census Bureau, American Community Survey 5-Year Estimates, place level, 2020-2024 5-year.
Williamsfield
Flood risk in Williamsfield
- NFIP communityVillage of Williamsfield
- NFIP community number170355
- Participating in the NFIPYes
- Community Rating System classNone
- Currently effective map date08/02/11(M)
The Village of Williamsfield participates in the National Flood Insurance Program as community 170355 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.
Knox County, not Williamsfield
Knox County context, not Williamsfield figures
- Establishments in Knox County968
- Covered employment, Knox County17,106
- Average annual pay, Knox County$46,491
- Housing units permitted, Knox County2
Every figure in this section is published for Knox County as a whole and is not a measurement of Williamsfield.
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
Williamsfield questions, answered from the record.
How many people live in Williamsfield, Illinois?
531, in 219 households. Williamsfield village covers 1.23 square miles of land, which is 431 people per square mile. Source: US Census Bureau, American Community Survey 5-Year Estimates, place level, 2020-2024 5-year.
What county is Williamsfield in?
Knox 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 Williamsfield?
$82,417. The median owner-occupied home is valued at $109,800. Median gross rent is $617 per month. Source: US Census Bureau, American Community Survey 5-Year Estimates, place level, 2020-2024 5-year.
Is Williamsfield in the National Flood Insurance Program?
Yes. Williamsfield appears in the FEMA Community Status Book as Williamsfield, village of, community 170355, 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 Williamsfield figures?
No, and they are labeled so. County Business Patterns, QCEW, the Building Permits Survey, BEA product and IRS migration are published for Knox 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 Williamsfield.
Is zoning published for Williamsfield?
No. Nothing on this page presents parcel level zoning.