Census tract · Brown County

Census Tract 9705, Brown County, Illinois

Census Tract 9705, GEOID 17009970500, in Brown County, Illinois, entirely within Mount Sterling Township. 4,031 residents in the ACS 2020-2024 5-year estimates (±159); the 2020 Census counted 3,895.

Residents, 2020-2024

4,031

±159 (90% margin)
2020 Census count: 3,895

Median household income

$61,806

±$8,808 (90% margin)
Brown County: $67,917

Median home value

$137,400

±$15,618 (90% margin)
Brown County: $150,300

Median gross rent

$604

±$215 (90% margin)
Brown County: $698

Where is Census Tract 9705?

Census Tract 9705 is one of 2 census tracts in Brown County, Illinois. It covers 6.21 square miles of land, 628 residents per square mile in 2020. Its GEOID, 17009970500, names it uniquely (how tract numbers and GEOIDs work).

Places Census Tract 9705 lies in (share of its 2020 census blocks)
PlaceShare of the tract
Mount Sterling Township100%
Mount Sterling90%
Census Tract 9705 (marked with a dot) in Brown County, Illinois. Boundaries: Census Bureau 2024.
9704 9705 5 mi
Census Tract 9705 (shaded) and the tracts that border it, numbered. Boundaries: Census Bureau 2024 cartographic boundary file, 1:500,000.

1 census tract borders Census Tract 9705: Tract 9704 ($75,524). The figure in brackets is each tract's median household income.

Whether a tract counts as low- or moderate-income for bank lending (the Community Reinvestment Act) is set by the FFIEC against its metro area's family income: look it up in the FFIEC census geocoder.

Source: 2024 Gazetteer and 2020 block assignment files, U.S. Census Bureau · Census reference files

How many people live in Census Tract 9705?

The 2020-2024 American Community Survey puts Census Tract 9705's population at 4,031 (±159) in 1,022 households; the 2020 Census counted 3,895 residents and 1,092 housing units.

Counts, ACS 2020-2024 5-year estimates
Measure Tract 9705Mount Sterling TownshipBrown CountyIllinois
Total population 4,031 ±159 4,157 6,322 12,694,798
Households 1,022 ±113 1,078 2,041 5,036,449
Average household size 2.05 ±0.18 2.06 2.15 2.46
Housing units 1,100 ±98 1,164 2,321 5,457,452

Source: American Community Survey 2020-2024 5-year estimates, U.S. Census Bureau (released January 2026); 2020 Census P.L. 94-171 · Check it at data.census.gov

Who lives in Census Tract 9705?

The median resident of Census Tract 9705 is 38.9 years old; 13.1% are under 18 and 12.8% are 65 or older. The largest group is non-Hispanic white residents at 60.8%, then non-Hispanic Black residents at 27.9%. 2.3% of residents were born outside the United States.

Age, origin, education, ACS 2020-2024 5-year estimates. Race groups are non-Hispanic; Hispanic includes any race.
Measure Tract 9705Mount Sterling TownshipBrown CountyIllinois
Median age 38.9 ±1.9 38.9 41.0 39.0
Under 18 years 13.1% ±1.8 pts 13.6% 16.8% 21.8%
65 years and over 12.8% ±1.9 pts 13.7% 16.3% 17.0%
Hispanic or Latino (any race) 9.4% ±1.7 pts 9.1% 6.7% 18.8%
White alone, not Hispanic 60.8% ±2.2 pts 62.0% 74.1% 58.1%
Black or African American alone, not Hispanic 27.9% ±2.6 pts 27.0% 17.8% 13.3%
Asian alone, not Hispanic 0.1% ±0.1 pts 0.1% 0.0% 5.9%
American Indian and Alaska Native alone, not Hispanic 0.0% ±0.1 pts 0.0% 0.0% 0.1%
Native Hawaiian and Other Pacific Islander alone, not Hispanic 0.0% ±0.9 pts 0.0% 0.0% 0.0%
Two or more races, not Hispanic 1.8% ±1.4 pts 1.8% 1.3% 3.4%
Some other race alone, not Hispanic 0.0% ±0.9 pts 0.0% 0.0% 0.4%
Born outside the United States 2.3% ±1.2 pts 2.3% 1.6% 14.7%
Speak a language other than English at home (age 5+) 10.3% ±2.4 pts 10.0% 7.0% 24.0%
Civilian veterans (age 18+) 3.9% ±1.9 pts 4.5% 4.0% 4.8%
With a disability 21.8% ±5.4 pts 21.3% 20.5% 12.1%
No health insurance coverage 0.6% ±0.7 pts 0.5% 2.1% 6.9%
High school graduate or higher (age 25+) 68.0% ±4.6 pts 68.9% 76.7% 90.5%
Bachelor's degree or higher (age 25+) 11.7% ±3.2 pts 11.5% 12.6% 37.8%
Graduate or professional degree (age 25+) 3.0% ±1.5 pts 2.9% 2.8% 15.3%
Lived in the same house a year earlier 78.7% ±6.0 pts 79.1% 83.9% 88.9%

Source: American Community Survey 2020-2024 5-year estimates, U.S. Census Bureau (released January 2026) (Data Profiles DP02, DP05) · Check it at data.census.gov

What do households in Census Tract 9705 earn?

Half of the 1,022 households in Census Tract 9705 earn less than $61,806 a year (±$8,808), against $67,917 across Brown County. 11.1% of residents live below the poverty line.

Income and poverty in 2024 dollars, ACS 2020-2024 5-year estimates
Measure Tract 9705Mount Sterling TownshipBrown CountyIllinois
Median household income $61,806 ±$8,808 $65,481 $67,917 $83,390
Mean household income $77,778 ±$13,935 $79,446 $81,732 $115,638
Per capita income $19,865 ±$2,846 $20,581 $26,202 $46,406
People below the poverty line 11.1% ±4.4 pts 10.5% 9.2% 11.8%
Children under 18 below the poverty line 11.8% ±9.1 pts 11.1% 10.3% 15.1%
Households receiving SNAP 15.0% ±6.4 pts 14.2% 12.1% 13.8%
Households with a computer 91.7% ±5.2 pts 91.4% 92.4% 95.2%
Households with a broadband subscription 78.6% ±8.1 pts 78.9% 84.6% 90.8%

Source: American Community Survey 2020-2024 5-year estimates, U.S. Census Bureau (released January 2026) (Data Profile DP03) · Check it at data.census.gov

What does housing cost in Census Tract 9705?

Owners occupy 55.0% of Census Tract 9705's occupied homes and renters 45.0%. The median owner-occupied home is valued at $137,400 by its owner (±$15,618). The median renter pays $604 a month including utilities.

Housing, ACS 2020-2024 5-year estimates
Measure Tract 9705Mount Sterling TownshipBrown CountyIllinois
Median home value (owner-occupied) $137,400 ±$15,618 $143,700 $150,300 $263,300
Median gross rent $604 ±$215 $604 $698 $1,274
Renters paying 35% or more of income on rent 16.0% ±11.1 pts 16.0% 24.8% 39.0%
Median monthly owner costs, with a mortgage $1,140 ±$180 $1,173 $1,147 $1,987
Owner-occupied homes 55.0% ±9.7 pts 57.3% 71.8% 67.1%
Renter-occupied homes 45.0% ±9.7 pts 42.7% 28.2% 32.9%
Housing units 1,100 ±98 1,164 2,321 5,457,452
Single-family detached homes 71.2% ±7.4 pts 72.8% 81.1% 58.2%
Mobile homes 1.1% ±1.1 pts 1.0% 5.0% 2.3%
Built 2020 or later 1.1% ±1.4 pts 1.0% 0.9% 0.7%
Built 2010 to 2019 3.2% ±2.6 pts 3.0% 3.0% 5.0%
Built 1939 or earlier 22.1% ±7.4 pts 22.8% 30.1% 20.2%
Households with no vehicle 13.4% ±6.9 pts 12.7% 8.5% 11.0%

Source: American Community Survey 2020-2024 5-year estimates, U.S. Census Bureau (released January 2026) (Data Profile DP04) · Check it at data.census.gov

How do people in Census Tract 9705 get to work?

73.3% of Census Tract 9705's workers drive alone and 8.0% work from home. The average trip to work takes 13.2 minutes.

Work and commuting, ACS 2020-2024 5-year estimates
Measure Tract 9705Mount Sterling TownshipBrown CountyIllinois
In the labor force (age 16+) 31.3% ±3.8 pts 32.0% 41.4% 65.0%
Unemployment rate 2.8% ±4.2 pts 2.6% 3.1% 5.8%
Drove alone to work 73.3% ±10.2 pts 74.3% 80.8% 65.9%
Carpooled 11.7% ±5.4 pts 11.3% 7.7% 7.8%
Public transportation 0.1% ±0.2 pts 0.1% 0.1% 5.8%
Walked 6.9% ±5.6 pts 6.6% 3.5% 2.8%
Worked from home 8.0% ±4.9 pts 7.8% 7.3% 15.9%
Mean travel time to work 13.2 min ±2.5 13.3 min 15.9 min 27.8 min

Source: American Community Survey 2020-2024 5-year estimates, U.S. Census Bureau (released January 2026) (Data Profile DP03) · Check it at data.census.gov

How does Census Tract 9705 compare with the other tracts in Brown County?

Brown County has only two tracts, too few for a rank to say anything; the comparison above sets Census Tract 9705 beside the county and the state.

Source: PlainCities ranks computed from the American Community Survey 2020-2024 5-year estimates, U.S. Census Bureau (released January 2026) · How ranks are computed

How reliable are the figures for Census Tract 9705?

1 of the 18 figures for Census Tract 9705 on this page carries a coefficient of variation over 40% and is marked with a ring: they come from a small sample, so read them as rough.

A census tract's figures rest on a few hundred sampled households over five years, so its margins are wider than a city's. Two tracts differ only when the gap between them is larger than their combined 90% margin (the square root of the sum of the two squared margins). How to read a margin of error.

Source: American Community Survey 2020-2024 5-year estimates, U.S. Census Bureau (released January 2026): margins of error as published · Check it at data.census.gov

How these figures are made: methodology and release checks · reading a margin of error · every state · corrections