7,046 people (2024 Census estimate, −0.6% since 2020)
407 square miles of land · 17 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.
9 active community water systems list Nemaha County in the area they serve, reporting 6,513 people served in all (a system that crosses county lines counts its whole population).
| AUBURN, CITY OF groundwater (surface-influenced) · local government · NE3112703 | 3,478 served |
| NEMAHA CO RWD #2 groundwater · local government · NE3112707 | 1,011 served |
| PERU, CITY OF buys groundwater · local government · NE3112705 | 650 served |
| NEMAHA CO RWD 1 groundwater · local government · NE3112701 | 600 served |
| JOHNSON, VILLAGE OF groundwater · local government · NE3112708 | 328 served |
| BROWNVILLE, VILLAGE OF buys groundwater · local government · NE3112704 | 142 served |
| BROCK, VILLAGE OF groundwater · local government · NE3112702 | 137 served |
| NEMAHA, VILLAGE OF groundwater · local government · NE3112706 | 122 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 13 people were held in Nemaha County's jail, in Vera's latest figure (2019), or 303 per 100,000 residents ages 15–64. In 2014 it was about 4.
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 Nemaha County. School taxes are usually the largest part of a property tax bill.
Spent $14.4 million — $13.5 million to run schools, about $12,872 per student, plus $702,000 on buildings and equipment. Money in: $8.2 million local (mostly property tax), $5.2 million state, $984,000 federal. Long-term debt: $3.6 million.
Spent $5.4 million — $5.1 million to run schools, about $13,939 per student, plus $193,000 on buildings and equipment. Money in: $3.3 million local (mostly property tax), $1.3 million state, $368,000 federal. Long-term debt: $9,000.
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 Nemaha County about $5.1 million a year on average in buildings, crops and lives. Ability to bounce back (community resilience): Relatively High; social vulnerability: Relatively Moderate.
Source: FEMA National Risk Index (December 2025), expected annual loss. Ratings compare counties nationwide; they're estimates, not predictions.
179 bridges in Nemaha County: 84 in good condition, 35 fair, and 60 poor (33.5%). “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.
| US136 over MISSOURI RIVER · built 1938 | 2,450 vehicles a day |
| N105 over MUDDY CREEK TRIBUTARY · built 1980 | 455 vehicles a day |
| N62 over LONG BRANCH CREEK · built 1957 | 150 vehicles a day |
| 643A AVE over HONEY CREEK · built 1935 | 130 vehicles a day |
| FAS 3695 over STREAM · built 1979 | 65 vehicles a day |
| COLL 7896 over TRIBUTARY TO MUDDY CREEK · built 1935 | 60 vehicles a day |
Source: Federal Highway Administration, National Bridge Inventory (2025 submission). Includes state, county and city bridges.
Federal grants paid for $6.2 million of work in Nemaha County in fiscal 2025, about $878 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 Nebraska 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 Nemaha 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 Nemaha County built: brayden.ozark@gmail.com.
More of Nebraska: the state government and every county in Nebraska.
Nearby counties: Richardson County (19 mi) · Johnson County (22 mi) · Atchison County, MO (22 mi) · Otoe County (23 mi) · Pawnee County (27 mi) · Fremont County, IA (28 mi).