Census › Illinois › Carroll County

Carroll County, IL

Figures from the 2020-2024 American Community Survey five-year estimates (table codes link to the same table for this area at data.census.gov) and the 2020 census (P1), via IPUMS NHGIS. Estimates for small areas carry wide margins of error; a tract's figures describe its residents, not any one organization.

Against the state: median household income here is 73% of Illinois's ($83,390); poverty 14.2% against 11.8%; 0.1% of the state's people live here.

Census tracts

Click an area for its page. Circles are FURP records at their ZIP code's center point, sized by how many. Download this map's areas with their census figures: CSV (center points) · GeoJSON (outlines), ready for Datawrapper, Mapshaper or Google My Maps. Outlines: Census TIGER/Line 2026, simplified.

Places in the county

• Savanna 2,816 · median household income $48,036
• Thomson 1,757 · median household income $61,250
• Lanark 1,541 · median household income $59,375
• Mount Carroll 1,501 · median household income $58,500
• Milledgeville 1,218 · median household income $59,417
• Lake Carroll 853 · median household income $108,750
• Shannon 772 · median household income $58,929
• Chadwick 591 · median household income $78,688

FURP records in Carroll County, IL

Cross-reference: 199 nonprofits for 15,576 residents is 127.8 per 10,000 people; their latest-year revenue of $24,006,996 is $1,541 per resident, 6.0% of all household income here (households at the median income).

Highest-paid people on nonprofit returns here

Each person's latest year on a 990 at a nonprofit placed here (reported pay including related organizations and other compensation); people paid under $50,000 are left out. The median household income here is $60,758.

Nonprofits: biggest by revenue (latest return)

• WILLOW SPRINGS CHARITABLE TR Mt Carroll, IL · $15,338,069
• ROLLING HILLS PROGRESS CENTER INC Lanark, IL · $2,671,326
• BLACKHAWK AREA CU Savanna, IL · $2,094,830
• CARROLL COUNTY SENIOR SERVICES ORGANIZATION INC Mount Carroll, IL · $1,047,180
• SAVANNA COMMUNITY AMBULANCE ASSOCIATION Savanna, IL · $453,661
• CAMPBELL CENTER FOR Mount Carroll, IL · $413,836
• CARROLL COUNTY FARM BUREAU Mount Carroll, IL · $327,829
• CAROLINE MARK HOME Mount Carroll, IL · $200,230
• SAVANNA HISTORICAL SOCIETY NFP Savanna, IL · $144,757
• GREAT RIVER OUTREACH NFP Savanna, IL · $126,483

Form D issuers: biggest by amount sold

• Hetz Ventures, L.P. Tel Aviv-Yafo, L3 · $55,000,000
• HETZ VENTURES III (ISRAEL), L.P. Tel Aviv-Yafo, L3 · $32,080,000
• Hetz Ventures Opportunity Fund I, L.P. Tel Aviv, L3 · $26,650,000
• MILLEDGEVILLE BANCORP INC Milledgeville, IL · $2,400,000

Political committees

• CITIZENS FOR BRET ROGERS Lanark, IL
• CURTISS FOR CONGRESS Mt Carroll, IL
• JULIE FOR ILLINOIS Mt Carroll, IL

Form 5500 plan sponsors: biggest by plans

• J.B. SULLIVAN, LLC Savanna, IL · 3
• BLACKHAWK AREA CREDIT UNION Savanna, IL · 2
• EDWARD J. MITCHELL, ATTORNEY AT LAW Lanark, IL · 2
• FIRST STATE BANK SHANNON - POLO Shannon, IL · 2
• MILLEDGEVILLE STATE BANK Milledgeville, IL · 2
• SOLUTIONS FROM SCIENCE, INC. Thomson, IL · 2
• STANROD INC Mount Carroll, IL · 2
• CHADWICK MANUFACTURING, LTD Chadwick, IL · 1
• COMPLIANCESIGNS, INC. Chadwick, IL · 1
• CORYS LANDSCAPING AND DESIGN LLC Shannon, IL · 1

Open Payments recipients: biggest by industry payments

• DANIEL C WOODS Savanna, IL · $5,415
• ANGELA K CONKLIN Mount Carroll, IL · $3,695
• DAVID L REESE Lanark, IL · $849
• SCOTT CHRISTIAN BARES Savanna, IL · $490
• DENNIS WALTERS Lanark, IL · $252
• DAVID PURLEE Mount Carroll, IL · $234
• ANGELA M STRALOW Milledgeville, IL · $31
• CAROL S LEITZEN Mount Carroll, IL · $16

Patent and trademark owners: biggest by patents and marks

• Solutions From Science, Inc. Thomson, IL · 12
• Charles Electronics, LLC Mt. Carroll, IL · 10
• ComplianceSigns, Inc. Chadwick, IL · 6
• Forster Products, Inc. Lanark, IL · 5
• Saint Technologies, Inc. Shannon, IL · 4
• Tee Lee Popcorn, Inc. Shannon, IL · 3
• Heirloom Audio Productions, LLC Thomson, IL · 2
• It's A Golden Opportunity, INC Savanna, IL · 2
• Mills Machine II, Inc. Savanna, IL · 2
• Archer's Choice Media, Inc. Lanark, IL · 1

Federal award recipients: biggest by federal awards

• ROLLING HILLS PROGRESS CENTER, INC Lanark, IL · $32,446,051
• PRIVATE INDIVIDUAL Mount Carroll, IL · $8,025,714
• JO-CARROLL DEPOT LRA Savanna, IL · $7,266,413
• COUNTY OF CARROLL Savanna, IL · $4,789,649
• SCHAFER FISHERIES INC. Thomson, IL · $4,000,000
• NEVADA COMMONS LTD Shannon, IL · $3,427,250
• CARROLL COUNTY Mount Carroll, IL · $3,129,282
• J & J FARMS Milledgeville, IL · $2,696,786
• D & R STONER FAMILY FARMS Shannon, IL · $2,575,961
• NEVADA MEADOWS Shannon, IL · $2,559,078

Census figures are from IPUMS NHGIS: the American Community Survey 2020-2024 five-year estimates (ACS table codes shown with each figure) and the 2020 decennial census (Demographic and Housing Characteristics), by state, county, place and census tract. FURP records are placed by ZIP code (the Census Bureau's 2020 ZCTA-to-county and ZCTA-to-tract relationship files: the county or tract holding most of the ZIP's land) and by city name (Census place names, normalized), so a record's tract is its ZIP's main tract, not its street's. Cite: Jonathan Schroeder, David Van Riper, Steven Manson, Grace Cooper, Zachary Krause, Tracy Kugler, Tsu Zhu, and Steven Ruggles. IPUMS National Historical Geographic Information System: Version 21.0 [dataset]. Minneapolis, MN: IPUMS. 2026. http://doi.org/10.18128/D050.V21.0