• county
  • FIPS 31025
  • Largest town: Plattsmouth

Cass County, Nebraska

Cass County had 27,492 residents in the Census Vintage 2024 estimate, on 556.9 square miles of land. It ranks 12th of 93 in Nebraska by population and 67th by land area.

Population
27,492
#12 of 93 in Nebraska · #1,527 in US
Area
556.9 sq mi
#67 of 93 in Nebraska · #1,862 in US
Density
49 / sq mi
#12 of 93 in Nebraska · #1,484 in US
Median household income
$83,291
#5 of 93 in Nebraska · #361 in US

Census Vintage 2024 estimates · SAIPE 2023 income · 2024 Gazetteer land area

Cass County within Nebraska. Pin: Lincoln.

Measure from here

Tools and pages that start from Cass County

Cass County population, land area and income

Cass County had 27,492 residents in the Census Vintage 2024 estimate, on 556.9 square miles of land. It ranks 12th of 93 in Nebraska by population and 67th by land area. That works out to 49.4 people per square mile, below the US average of 96.3, and above the national county median.

The median county-equivalent in Nebraska has 6,103 residents, so Cass County is 4.5 times that size.

Its SAIPE 2023 median household income of $83,291 is in the top quarter among 3,143 counties with an estimate.

National rank among 3,144

Population

27,492

3144th1st

1527th of 3,144 (US)

Land area

557 sq mi

3144th1st

1862nd of 3,144 (US)

Density

49.4 / sq mi

3144th1st

1484th of 3,144 (US)

Median household income

$83,291

3143rd1st

361st of 3,143 (US)

Rank within Nebraska (93)

Population

27,492

93rd1st

12th of 93 (NE)

Land area

557 sq mi

93rd1st

67th of 93 (NE)

Density

49.4 / sq mi

93rd1st

12th of 93 (NE)

Median household income

$83,291

93rd1st

5th of 93 (NE)

How Cass County's population changed since 2020

Cass County gained 884 residents between the July 2020 and July 2024 estimates, a rise of 3.3%. That ranks 8th of 93 in Nebraska for growth. The median Nebraska county changed by -0.6%, and the state as a whole by +2.1%.

Since the April 2020 estimates base, Cass County recorded 1,084 births and 1,137 deaths, a natural change of -53. Net international migration added +76 and net domestic migration, people moving to or from other US counties, came to +886. The largest single component was domestic migration, which added 886 people.

26.6k202027.1k202127.2k202227.5k202327.5k2024
Census Vintage 2024 county estimates for July 1 of each year. The axis starts above zero so year-to-year changes are visible.

Components of change, April 2020 to July 2024

Births
1,084
Deaths
1,137
Net international migration
+76
Net domestic migration
+886
Change, July 2023 to July 2024
+34

Where Cass County is

The Census internal point of Cass County is at 40.909900, -96.140600. It sits in UTM zone 14N. The map shades Nebraska's 93 county-equivalents by population change from 2020 to 2024, darker for faster growth, with Cass County outlined. Dots are towns of 1,000+ people with residents in it.

York County: +1.9%Boone County: -0.1%Grant County: -7.0%Saline County: +0.2%Adams County: +0.1%Clay County: -0.1%Logan County: -3.3%Hamilton County: +1.7%Thomas County: -5.9%Lancaster County: +3.0%Sherman County: -0.1%Lincoln County: -3.5%Stanton County: -1.1%Dawes County: -1.9%Madison County: +0.1%Perkins County: -2.9%Arthur County: -2.1%Deuel County: +3.2%Banner County: -1.9%Dundy County: -4.2%Garfield County: -5.4%Wheeler County: +4.3%Seward County: +0.9%Johnson County: -1.4%Wayne County: +1.7%Hayes County: -0.4%Gosper County: -4.6%Blaine County: +6.1%Valley County: -0.6%Keith County: -2.1%Antelope County: +1.3%Hooker County: -1.3%Hitchcock County: -6.1%Box Butte County: -1.1%Morrill County: -1.6%Chase County: -3.2%Howard County: +1.3%Holt County: +0.1%Phelps County: +0.7%Cuming County: -0.7%Jefferson County: -1.7%Garden County: -4.5%Dodge County: +2.1%Buffalo County: +1.9%Butler County: +1.0%Fillmore County: -1.0%Boyd County: -5.7%Nuckolls County: +0.1%Loup County: -3.8%Sioux County: -3.7%Thayer County: -3.1%Cheyenne County: +1.2%Rock County: -1.9%Nance County: -3.9%Greeley County: +0.8%Hall County: +0.1%Brown County: -0.9%Dakota County: -1.0%Kearney County: +0.9%Webster County: -1.9%Nemaha County: -0.6%Franklin County: -2.5%Furnas County: -3.5%Sarpy County: +7.1%Platte County: +3.5%Kimball County: -3.0%Polk County: +1.0%Dixon County: -1.1%Knox County: -1.0%Thurston County: -1.8%Douglas County: +2.7%Scotts Bluff County: -0.9%Pierce County: -0.1%Burt County: +0.0%Merrick County: +2.3%Sheridan County: -3.5%Washington County: +1.6%Frontier County: +1.3%Colfax County: +2.6%Cass County: +3.3%Pawnee County: -0.8%Richardson County: -2.5%Cedar County: -1.3%Gage County: +0.2%Dawson County: +2.0%Keya Paha County: +7.8%Cherry County: +1.9%McPherson County: -5.1%Otoe County: +4.3%Red Willow County: -2.6%Custer County: -0.0%Harlan County: -1.2%Saunders County: +4.6%
Change 2020 to 2024
  1. < -3.0%
  2. < -1.1%
  3. < +0.1%
  4. < +1.7%
  5. ≥ +1.7%
no data

Orange pin: Cass County internal point. Dark pin: Lincoln.

Internal point

Decimal
40.909900, -96.140600
DMS
40°54'35.64"N 96°08'26.16"W
UTM
14N 740821.5E 4532692.2N
Geohash
9z78sr2t3
Plus code
86G5WV55+XQ

Towns in Cass County

4 incorporated places of 1,000+ people have residents in Cass County, 10,546 people together, or 38% of the county. Each figure counts only the part of the town inside Cass County; towns marked "part" extend into another county. The largest is Plattsmouth with 6,887.

  1. 01Plattsmouth6,887
  2. 02Louisville1,394
  3. 03Eagle1,205
  4. 04Weeping Water1,060
Census Vintage 2024 subcounty estimates, county parts of incorporated places (SUMLEV 157).

Counties bordering Cass County

The Census 2024 county adjacency file lists 6 neighbors for Cass County, including 2 across a state line. The most populous is Lancaster County, NE, with 332,857 residents. Distances run between Census internal points in a straight line.

Distance to Lincoln and the nearest big city

Lincoln is 30.1 miles WSW of Cass County's internal point in a straight line. The nearest place of 100,000 or more is Omaha, NE (population 489,265), 24.8 miles away. The nearest place of 10,000 or more is Papillion, NE (population 25,248), 16.5 miles away.

Cass County FIPS code

The FIPS code of Cass County is 31025: state code 31 for Nebraska plus county code 025. Use it as text, with the leading zero, when joining Census, BLS, or CDC county tables. SAIPE lists its 2023 median household income as $83,291.

Questions people ask

What is the population of Cass County, Nebraska?

The Census Vintage 2024 estimate for July 1, 2024 is 27,492. That is up 884 people (3.3%) from the July 2020 estimate of 26,608.

What is the FIPS code of Cass County?

31025. The first two digits (31) are Nebraska; the last three (025) identify the county.

What is the largest town in Cass County?

Plattsmouth, with 6,887 residents inside Cass County in 2024.

Which counties border Cass County?

6 county-equivalents border it in the Census 2024 adjacency file: Lancaster County, NE; Sarpy County, NE; Saunders County, NE; Otoe County, NE; Mills County, IA; Fremont County, IA.

Sources and data as of

Data as of: Census Vintage 2024 population estimates, 2024 Gazetteer land area and internal points, SAIPE 2023 median household income.

  1. 01Census Vintage 2024 county population estimates
  2. 02Census 2024 Gazetteer, counties
  3. 03Census SAIPE 2023 state and county estimates
  4. 04Census Vintage 2024 subcounty population estimates
  5. 05Census 2024 county adjacency file
  6. 06Census 2024 cartographic boundary file, counties (1:5,000,000)

How every number is computed: methodology. Spotted a wrong figure? Report an error.