US ZIP Code
58011

Buffalo, ND

Cass County  ·  North Dakota

● Active
👥 507 Population ↑ 27% since 2019
💰 $98,958 Median HH Income
▲ 30% above avg ↑ 39% since 2019
🎂 47.1 Median Age ↓ 6% since 2019
🏠 $234,700 Median Home Value
▼ 16% below avg ↑ 46% since 2019
🎓 57.2% College Grads
▲ 48% above avg
📊 0.4% Unemployment
▼ 92% below avg ↓ 64% since 2019
ZIP Code Details
ZIP Code58011
CityBuffalo
StateNorth Dakota (ND)
CountyCass County
Area Code701
Elevation1,207 ft
Latitude46.927793
Longitude-97.544021
TimezoneChicago (DST)
FIPS38017
ZIP TypeStandard
StatusActive
People & Population (ACS 2023)
♂ Male 50.7% (257) Female 49.3% (250) ♀

Race & Ethnicity

White: 90.5%Hispanic: 6.3%Black: 0.8%Other: 1.4%Race
White90.5%
Hispanic6.3%
Black0.8%
Other1.4%

Age Breakdown

Under 5
3%
5–17
26%
18–24
2%
25–44
19%
45–64
34%
65+
4%

Key Indicators

Median Age47.1 yrs ↓ 6% since 2019
Avg Household Size2.60
Below Poverty3.9% ▼ 61% below avg
College Grads57.2% ▲ 48% above avg
Unemployment0.4% ▼ 92% below avg
HS Graduate48 (13.8%)
Some College54 (15.5%)
Associates47 (13.5%)
Bachelors62 (17.8%)
Graduate Degree137 (39.4%)

Education

HS Grad: 13.8%Some College: 15.5%Associates: 13.5%Bachelors: 17.8%Graduate: 39.4%Edu
HS Grad13.8%
Some College15.5%
Associates13.5%
Bachelors17.8%
Graduate39.4%
Housing & Income

Housing Tenure

Owner: 91.8%Renter: 8.2%Tenure
Owner91.8%
Renter8.2%

Home Value Distribution

Under $50k
5%
$50k–100k
8%
$100k–150k
12%
$150k–200k
14%
$200k–300k
25%
$300k–500k
19%
Over $500k
18%

Financials

Median HH Income$98,958 ▲ 30% above avg ↑ 39% since 2019
Median Home Value$234,700 ▼ 16% below avg ↑ 46% since 2019
Home/Income Ratio2.4x (nat avg ~3.5x)
Total Units222
Vacant Units27
Avg HH Size2.60

Income Distribution

Under $25k
10%
$25k–50k
8%
$50k–75k
17%
$75k–100k
16%
$100k–150k
28%
$150k–200k
12%
Over $200k
9%
Employment & Commute

How People Get to Work

Drove Alone
89%
Walked
7%
Work From Home
4%

Commute Time

Under 15 min
58%
15–30 min
16%
30–45 min
15%
Over 45 min
11%
Housing Stock

Year Built

Before 1940
1%
1940s–1950s
5%
1960s–1970s
16%
1980s–1990s
14%
2000+
65%

Summary

Total Units222
Vacant27
Owner Occupied91.8%
Renter Occupied8.2%
Avg HH Size2.60
Frequently Asked Questions
ZIP code 58011 is in Buffalo, ND, in Cass County.
ZIP code 58011 is located in North Dakota (ND).
ZIP code 58011 is in Cass County, ND.
ZIP 58011 observes the Chicago timezone. Daylight Saving Time is observed.
The estimated population of ZIP code 58011 is 507 people (ACS 2023).
The median household income in ZIP code 58011 is $98,958 (ACS 2023).
The median home value in ZIP 58011 is $234,700 (ACS 2023).
About ZIP Code 58011

ZIP code 58011 is located in Buffalo, North Dakota, within Cass County. With a population of 507, this is a sparsely populated ZIP code with a mature community — the median age is 47.1 years. Economically, 58011 is a middle-income ZIP code: the median household income of $98,958 is above the national average.

Real estate in ZIP code 58011 represents an affordable housing market. The median home value of $234,700 is below the national average. Homeownership is strong here — 91.8% of occupied units are owner-occupied, suggesting an established, stable residential community. Median home values have increased by 46% since 2019.

The population of 58011 is primarily White (90.53%). Residents are well-educated — 57.2% hold a bachelor's degree or higher, which is above the national average. Poverty affects a relatively small share of residents at 3.9%. Household income has grown by 39% since 2019.

The unemployment rate in 58011 stands at 0.4%, which is well below the national average. As in most parts of the country, driving alone is the dominant commute mode at 88%.

Overall, ZIP code 58011 in Buffalo, ND is characterized as middle-income, well-educated, a mature community, and predominantly owner-occupied. With 507 residents, a median household income of $98,958, and a median home value of $234,700, it offers a clear picture of life in this part of North Dakota.