10,305 people (2024 Census estimate, −1.3% since 2020)
346 square miles of land · 30 people per square mile
“Highest” and “lowest” are just order, not grades: a high rank for poverty or hazard losses means more of it. Each figure's source is in its section below.
4 active community water systems list Cumberland County in the area they serve, reporting 4,492 people served in all (a system that crosses county lines counts its whole population).
| GREENUP groundwater · local government · IL0350050 | 1,513 served |
| NEOGA buys surface water · local government · IL0350150 | 1,398 served |
| TOLEDO groundwater · local government · IL0350200 | 1,278 served |
| JEWETT buys groundwater · local government · IL0350100 | 303 served |
Source: U.S. EPA Safe Drinking Water Information System (SDWIS), active community systems, . Look up any system's violations and test results with EPA's search using its ID.
About 14 people were held in Cumberland County's jail, in Vera's latest figure (2019), or 216 per 100,000 residents ages 15–64. In 2014 it was about 22.
Source: Vera Institute of Justice, Incarceration Trends (built from federal Bureau of Justice Statistics jail surveys). Counties without their own jail, or that share one, may show no figure.
2 school districts have their office in Cumberland County. School taxes are usually the largest part of a property tax bill.
Spent $14.9 million — $12.9 million to run schools, about $12,805 per student, plus $1.4 million on buildings and equipment. Money in: $4.5 million local (mostly property tax), $9.8 million state, $1.8 million federal. Long-term debt: $2.1 million.
Spent $8.7 million — $7 million to run schools, about $13,902 per student, plus $1.4 million on buildings and equipment. Money in: $3.9 million local (mostly property tax), $4.9 million state, $1.4 million federal. Long-term debt: $735,000.
Source: U.S. Census Bureau, 2023 Annual Survey of School System Finances. Districts are listed by the county of their main office; some serve neighboring counties too.
Source: County Health Rankings & Roadmaps 2025 (University of Wisconsin Population Health Institute), which gathers federal data (CDC, Census, and others); measures cover different recent years. Blank lines aren't reported for small counties.
Overall risk: Very Low compared with other U.S. counties. FEMA estimates natural hazards cost Cumberland County about $7.4 million a year on average in buildings, crops and lives. Ability to bounce back (community resilience): Very High; social vulnerability: Relatively High.
Source: FEMA National Risk Index (December 2025), expected annual loss. Ratings compare counties nationwide; they're estimates, not predictions.
169 bridges in Cumberland County: 91 in good condition, 66 fair, and 12 poor (7.1%). “Poor” means a main part — the deck, the beams, or the supports — is rated 4 or lower on the federal 0–9 scale. It doesn't mean unsafe to drive; unsafe bridges are closed.
| I-70 (WB) over MUDDY CREEK · built 1968 | 11,550 vehicles a day |
| I-70 (EB) over MUDDY CREEK · built 1968 | 11,550 vehicles a day |
| I-57 (SB) over Eastern Illinois RR · built 1964 | 9,450 vehicles a day |
| I-57 (NB) over Eastern Illinois RR · built 1964 | 9,450 vehicles a day |
| I-57 (SB) over FAP 824 (US-45) · built 1963 | 9,450 vehicles a day |
| I-57 (NB) over FAP 824(US 45) · built 1963 | 9,450 vehicles a day |
Source: Federal Highway Administration, National Bridge Inventory (2025 submission). Includes state, county and city bridges.
Federal grants paid for $13.5 million of work in Cumberland County in fiscal 2025, about $1,289 per resident — to the county, cities, schools, hospitals, nonprofits and others.
Source: USAspending.gov, grants by place of performance, fiscal 2025 (Oct. 2024 to Sept. 2025). Search it by county to see each award.
From Grants.gov: posted grants listing county governments as eligible, soonest deadline first; research-only and overseas programs left out; list updated 2026-10-13, refreshed weekly. 62 are open in all. Cities, towns, school districts and nonprofits have their own lists there.
Registration deadlines, early voting and polling places for Illinois are on the federal site vote.gov, which links to the state's official election office.
The budget, property tax rates, audits, local officials and offices for Cumberland County come from the county's own records, which we haven't gathered — not gathered, never hidden. See what a full county site looks like, or ask to have Cumberland County built: brayden.ozark@gmail.com.
More of Illinois: the state government and every county in Illinois.
Nearby counties: Coles County (17 mi) · Jasper County (19 mi) · Clark County (24 mi) · Effingham County (24 mi) · Shelby County (31 mi) · Crawford County (32 mi).