68331 ZIP Code — Cortland, NE

Gage County, Nebraska

ZIP code 68331 is located in Cortland, Nebraska, within Gage County. It covers approximately 48.58 square miles and serves a population of 1,154 residents. This is a standard ZIP code in the Central (CT) timezone, served by area code 402.

About ZIP code 68331

The housing stock consists of predominantly single-family detached homes. Most homes were built in the 1970s, giving the area an established character. Median home value is $239,600. Owner-occupancy is high at 86%, well above the national average.

Median household income is $78,500. The poverty rate of 4% is below the national average. 35% of households receive Social Security income, suggesting a notable retiree or disability population.

The dominant occupation class is management, business, and professional, with education and healthcare as the leading industry. The average commute of 33 minutes is near the national average.

Educational attainment is near the national average, with 24% of residents holding a bachelor's degree or higher.

Overall, ZIP code 68331 reflects a community defined by high homeownership and a significant Social Security-dependent population.

1,154

population

48.58

sq mi land

Standard

ZIP type

Central (CT)

timezone

68331 ZIP code map

Cities in ZIP code 68331

Below are the cities the US Postal Service accepts for ZIP code 68331. Using any city not on this list may result in mail delivery delays.

City	Status
Cortland	Acceptable
Cortland	Preferred

Nearby ZIP codes

68422 Pickrell (4.6 mi) 68358 Firth (6.2 mi) 68328 Clatonia (7 mi) 68301 Adams (8.5 mi) 68368 Hallam (9 mi) 68404 Martell (10.8 mi) 68372 Hickman (11.4 mi) 68341 De Witt (12.1 mi) 68357 Filley (13 mi) 68430 Roca (13.7 mi) 68310 Beatrice (14.6 mi) 68465 Wilber (16 mi)

Demographics updated 05/2026

Population
Total population	1,154
Population density	24 / sq mi
State FIPS	31
County FIPS	067

Geography
Land area	48.58 sq mi
Water area	0.31 sq mi
Latitude	40.4653
Longitude	-96.7042
Timezone	Central (CT)
Area code	402

Total population by age

Gender

Race & ethnicity

Economics updated 05/2026

Household income

Income range	This ZIP	County avg	State avg
Under $50k	44.1%	48.7%	39.5%
$50k – $100k	24.1%	31.1%	33.4%
$100k – $200k	30.4%	17.4%	22.0%
Over $200k	1.4%	2.9%	5.2%

Demographics & statistics

1,154

Population

People per sq mi

42.4

Median age

$78,500

Median household income

$36,305

Per capita income

$239,600

Median home value

$1,229

Median monthly rent

85.5%

Home ownership

3.8%

Poverty rate

2.0%

Unemployment

359

Housing units

24.2%

Bachelor's or higher

Age distribution

Male Female

Under 5

5–9

10–14

15–19

20–24

25–34

35–44

100

45–54

55–59

60–64

65–74

75–84

85+

← Male

Female →

Age summary

Group	Count	%
Under 18	279	24.2%
18 and over	875	75.8%
65 and over	190	16.5%
Median age	42.4 years

Race & ethnicity

White 90.1%

Two or more races 7.2%

Hispanic or Latino 2%

American Indian / Alaska Native 0.5%

Other race 0.2%

Group	Count	%
White	1,061	90.1%
Two or more races	85	7.2%
Hispanic or Latino	23	2%
American Indian / Alaska Native	6	0.5%
Other race	2	0.2%

Household income

Income range	This ZIP	County avg	State avg
Under $50k	44.1%	48.7%	39.5%
$50k – $100k	24.1%	31.1%	33.4%
$100k – $200k	30.4%	17.4%	22.0%
Over $200k	1.4%	2.9%	5.2%

Under $10k 0.5%

$10k–$15k 0.7%

$15k–$25k 6.9%

$25k–$35k 9.4%

$35k–$50k 8.6%

$50k–$75k 21.9%

$75k–$100k 8.4%

$100k–$150k 26.8%

$150k–$200k 11.3%

$200k+ 5.4%

Range	% of households
Under $10k	0.5%
$10k–$15k	0.7%
$15k–$25k	6.9%
$25k–$35k	9.4%
$35k–$50k	8.6%
$50k–$75k	21.9%
$75k–$100k	8.4%
$100k–$150k	26.8%
$150k–$200k	11.3%
$200k+	5.4%
Median income	$78,500

Housing

Home values

Under $50k 1.7%

$50k–$100k 6.6%

$100k–$150k 21.0%

$150k–$200k 12.4%

$200k–$300k 22.5%

$300k–$500k 20.5%

$500k–$1M 15.3%

Housing overview

Metric	Value
Median home value	$239,600
Median rent / month	$1,229
Owner occupied	85.5%
Renter occupied	14.5%
Vacant	2.9%
Single-family detached	93.3%
Large apartment buildings	0.0%
Mobile homes	1.7%
Median rooms	6.8
Avg household size (owned)	2.78

Year built

Era	%
2020 or later	0.0%
2010–2019	6.2%
2000–2009	23.2%
1990–1999	5.5%
1980–1989	3.6%
1970–1979	29.9%
1960–1969	5.0%
1950–1959	4.8%
1940–1949	8.1%
1939 or earlier	13.6%

Bedrooms

Size	% of units
No bedroom (studio)	1.0%
1 bedroom	6.0%
2 bedrooms	18.9%
3 bedrooms	47.4%
4 bedrooms	18.7%
5+ bedrooms	8.1%

Vehicles per household

Vehicles	% of households
No vehicle	2.5%
1 vehicle	9.9%
2 vehicles	30.3%
3 or more	57.4%

Heating fuel

Fuel type	%
Utility gas	40.4%
Electricity	34.0%
Propane / LP gas	22.7%
No fuel used	0.5%

Households & families

Household type	Count	%
Married-couple family	294	72.4%
Cohabiting couple	24	5.9%
Male householder, no spouse	31	7.6%
Female householder, no spouse	57	14.0%
Households with children under 18	116	28.6%
Households with seniors (65+)	133	32.8%
Average household size	2.84

Marital status

Status	Male	Female
Never married	34.6%	19.1%
Married	58.0%	65.6%
Separated	0.0%	2.0%
Widowed	1.7%	4.2%
Divorced	5.6%	9.2%

Education

Less than 9th grade 1.9%

Some HS, no diploma 4.5%

HS graduate 31.0%

Some college, no degree 23.1%

Associate's degree 15.2%

Bachelor's degree 15.5%

Graduate / professional 8.7%

Metric	%
HS diploma or higher	93.5%
Bachelor's or higher	24.2%

School enrollment (ages 3–17)

Type	Count	%
Nursery / preschool	9	2.8%
Kindergarten	8	2.5%
Elementary school	130	39.9%
High school	117	35.9%
College / grad school	62	19.0%

Employment

Industry of employment

Education & healthcare 21.9%

Manufacturing 14.9%

Construction 10.0%

Transportation & utilities 10.0%

Retail trade 9.7%

Professional & management 8.7%

Public administration 6.2%

Finance & real estate 5.4%

Other services 4.3%

Arts, food & hospitality 3.8%

Agriculture & mining 2.9%

Wholesale trade 2.2%

Occupation

Category	%
Management, business & arts	33.2%
Service	17.5%
Sales & office	12.9%
Natural resources & construction	13.2%
Production & transportation	23.3%

Employment type

Type	%
Private sector	76.5%
Government	12.2%
Self-employed	11.3%
Unpaid family workers	0.0%

Commute

Method	%
Drive alone	71.0%
Carpool	18.2%
Public transit	0.0%
Walk	0.0%
Work from home	10.8%
Other means	0.0%
Avg commute (minutes)	32.5

Poverty

All people 3.8%

Under 18 years 3.9%

18 and over 3.8%

Married-couple families 2.4%

Female-led households 11.1%

Income support

Source	% of households
Social Security	34.7%
Retirement income	21.9%
Supplemental Security	4.4%
Cash public assistance	0.7%
Food stamps / SNAP	2.2%

Health indicators

Condition	%
Obesity	37.7%
High blood pressure	34.1%
High cholesterol	29.6%
Diabetes	9.1%
Heart disease	6.2%
Stroke	2.8%
Asthma	8.2%
Arthritis	24.3%
Kidney disease	2.7%
Pulmonary disease	5.6%
Cancer	7.2%

Behavior / access	%
Smoking	17.3%
Binge drinking	22.2%
No physical activity	22.0%
Less than 7 hrs sleep	30.7%
Depression	17.7%
Fair or poor health	10.7%
Poor mental health	11.1%
Poor physical health	8.5%
No health insurance	12.0%
Visited doctor (checkup)	71.6%
Visited dentist	66.5%
Cholesterol screening	89.5%
Teeth loss	10.5%

Veterans & disability

Veterans	Count	%
Civilian veterans	59	6.7%

Disability	%
Any disability	12.1%
Under 18	5.0%
18–64 years	10.8%
65 and over	27.4%

Health insurance coverage

Type	%
Private insurance	83.4%
Public insurance	23.2%
No insurance	5.2%
Uninsured under 19	3.3%

Language & origin

Language spoken at home (age 5+)

Language	Count	%
English only	1,122	97.2%
Spanish	6	0.5%
Other Indo-European	0	0.0%
Asian & Pacific Islander	0	0.0%
Other languages	6	0.5%

Place of birth & citizenship

Origin	Count	%
Native born (US)	1,083	93.8%
Born in same state	1,063	92.1%
Born in different state	875	75.8%
Foreign born	20	1.7%
Naturalized citizen	71	6.2%
Not a US citizen	0	0.0%

Ancestry

Ancestry	Count	%
Italian	124	10.7%
French	124	10.7%
Polish	24	2.1%

Ancestry	Count	%
Arab	19	1.6%
English	16	1.4%
Dutch	5	0.4%

Technology access

Metric	% of households
Computer access	35.2%
Internet access	91.6%

Source: U.S. Census Bureau, American Community Survey 2025 estimates.

Frequently asked questions about ZIP code 68331

What city is ZIP code 68331 in?

ZIP code 68331 is primarily assigned to Cortland, Nebraska.

What county is ZIP code 68331 in?

ZIP code 68331 falls within Gage County, Nebraska.

Is ZIP code 68331 mostly owner-occupied?

86% of occupied units in ZIP code 68331 are owner-occupied, well above the national average.

What is the population of ZIP code 68331?

ZIP code 68331 has an estimated population of 1,154 residents, with a density of 24 people per square mile.

What is the median household income in ZIP code 68331?

The median household income in ZIP code 68331 is $78,500, above the national median of ~$75,000.

What is the typical home value in ZIP code 68331?

The median home value in ZIP code 68331 is $239,600.

What timezone is ZIP code 68331 in?

ZIP code 68331 observes the CST timezone.