Buffalo ZIP Code List — Harper County, OK

There is one unique ZIP code in Buffalo, Oklahoma and it is 73834. Area code: 580.

ZIP codes

458.12

sq mi land

0.87

sq mi water

580

area code

Buffalo, OK ZIP code map

About Buffalo, OK

Buffalo is a charming city located in Harper County, Oklahoma, known for its wide-open spaces and close-knit community. The city serves as a hub for residents and visitors seeking the tranquility of rural life alongside the beauty of the Oklahoma landscape. With its rich agricultural roots and welcoming atmosphere, Buffalo embodies the spirit of small-town America.

Location & geography

Buffalo occupies a vast area of 458.12 square miles, making it one of the larger towns in the region. Nearby cities include Beaver, located approximately 25 miles to the northwest, and the larger town of Woodward, roughly 50 miles to the southeast. The terrain features both land and water areas, including 0.87 square miles of water, which contributes to the scenic views of the surrounding countryside.

Community & economy

The community of Buffalo is characterized by its friendly residents and a strong sense of camaraderie among locals. Farming and ranching play pivotal roles in the local economy, providing jobs and sustaining the heritage of the area. Daily life in Buffalo often revolves around community events, school activities, and enjoying the outdoors, showcasing the charm and simplicity of rural living.

Transportation

Buffalo is accessible via several major highways, including U.S. Route 270, which connects residents to neighboring towns and cities. The nearest airport for commercial flights is in Woodward, approximately 50 miles away, offering connectivity to larger metropolitan areas. Public transit options are minimal, reflecting the rural nature of the community.

History

Buffalo was founded in the late 19th century during the westward expansion, with agriculture becoming a cornerstone of its economic foundation. The town has seen various developments over the years, particularly in farming and ranching, which remain influential to this day. Notable events in the city's history include celebrating local fairs that highlight its agricultural heritage.

Did you know?

A surprising fact about Buffalo is its vast land area, which is quite significant for a small town. Additionally, the community closely engages in preserving its rural identity, offering a contrast to more urbanized areas in Oklahoma.

ZIP codes for Buffalo, OK (1)

ZIP code	City	County	Map
73834	Buffalo	Harper	View map

Demographics & statistics

1,636

Population

41.1

Median age

$68,750

Median household income

$26,605

Per capita income

$91,100

Median home value

$723

Median monthly rent

86.4%

Home ownership

9.5%

Poverty rate

2.7%

Unemployment

740

Housing units

17.3%

Bachelor's or higher

Age distribution

Male Female

Under 5

5–9

10–14

15–19

20–24

25–34

100

35–44

100

45–54

55–59

60–64

65–74

102

75–84

85+

← Male

Female →

Age summary

Group	Count	%
Under 18	438	26.8%
18 and over	1,198	73.2%
65 and over	354	21.6%
Median age	41.1 years

Race & ethnicity

White 71.4%

Hispanic or Latino 10.9%

Other race 10.7%

Two or more races 6.9%

American Indian / Alaska Native 0.1%

Group	Count	%
White	1,311	71.4%
Hispanic or Latino	200	10.9%
Other race	197	10.7%
Two or more races	126	6.9%
American Indian / Alaska Native	2	0.1%

Household income

$10k–$15k 4.3%

$15k–$25k 11.1%

$25k–$35k 3.4%

$35k–$50k 23.0%

$50k–$75k 12.1%

$75k–$100k 20.1%

$100k–$150k 20.4%

$150k–$200k 4.6%

$200k+ 1.2%

Range	% of households
$10k–$15k	4.3%
$15k–$25k	11.1%
$25k–$35k	3.4%
$35k–$50k	23.0%
$50k–$75k	12.1%
$75k–$100k	20.1%
$100k–$150k	20.4%
$150k–$200k	4.6%
$200k+	1.2%
Median income	$68,750

Housing

Home values

Under $50k 21.1%

$50k–$100k 42.7%

$100k–$150k 16.3%

$150k–$200k 7.3%

$200k–$300k 6.3%

$500k–$1M 6.3%

Housing overview

Metric	Value
Median home value	$91,100
Median rent / month	$723
Owner occupied	86.4%
Renter occupied	13.6%
Vacant	28.3%
Single-family detached	86.7%
Large apartment buildings	0.0%
Mobile homes	9.8%
Median rooms	5.9
Avg household size (owned)	2.80

Year built

Era	%
2020 or later	0.0%
2010–2019	0.5%
2000–2009	1.7%
1990–1999	7.9%
1980–1989	5.6%
1970–1979	17.7%
1960–1969	23.8%
1950–1959	12.9%
1940–1949	13.4%
1939 or earlier	16.5%

Bedrooms

Size	% of units
No bedroom (studio)	1.8%
1 bedroom	4.9%
2 bedrooms	21.5%
3 bedrooms	51.8%
4 bedrooms	16.2%
5+ bedrooms	3.8%

Vehicles per household

Vehicles	% of households
No vehicle	2.6%
1 vehicle	14.1%
2 vehicles	39.5%
3 or more	43.9%

Heating fuel

Fuel type	%
Utility gas	60.0%
Electricity	31.8%
Propane / LP gas	7.8%
Wood	0.2%
No fuel used	0.2%

Households & families

Household type	Count	%
Married-couple family	390	66.3%
Cohabiting couple	0	0.0%
Male householder, no spouse	141	24.0%
Female householder, no spouse	57	9.7%
Households with children under 18	238	40.5%
Households with seniors (65+)	216	36.7%
Average household size	2.69

Marital status

Status	Male	Female
Never married	13.9%	10.0%
Married	65.2%	71.9%
Separated	2.3%	0.0%
Widowed	5.6%	10.2%
Divorced	13.0%	7.9%

Education

Less than 9th grade 10.3%

Some HS, no diploma 6.2%

HS graduate 34.0%

Some college, no degree 27.1%

Associate's degree 5.2%

Bachelor's degree 8.8%

Graduate / professional 8.5%

Metric	%
HS diploma or higher	83.5%
Bachelor's or higher	17.3%

School enrollment (ages 3–17)

Type	Count	%
Nursery / preschool	12	3.7%
Kindergarten	86	26.8%
Elementary school	154	48.0%
High school	57	17.8%
College / grad school	12	3.7%

Employment

Industry of employment

Agriculture & mining 20.1%

Education & healthcare 17.6%

Public administration 14.7%

Retail trade 11.0%

Construction 9.0%

Arts, food & hospitality 7.7%

Other services 5.7%

Professional & management 5.1%

Transportation & utilities 2.9%

Manufacturing 2.8%

Information 2.3%

Wholesale trade 1.2%

Occupation

Category	%
Management, business & arts	40.0%
Service	18.8%
Sales & office	11.8%
Natural resources & construction	20.7%
Production & transportation	8.7%

Employment type

Type	%
Private sector	56.2%
Government	33.8%
Self-employed	10.0%
Unpaid family workers	0.0%

Commute

Method	%
Drive alone	88.8%
Carpool	8.4%
Public transit	0.0%
Walk	1.4%
Other means	0.0%
Avg commute (minutes)	16.2

Poverty

All people 9.5%

Under 18 years 0.0%

18 and over 12.5%

Married-couple families 2.8%

Female-led households 0.0%

Income support

Source	% of households
Social Security	40.8%
Retirement income	31.3%
Supplemental Security	4.3%
Cash public assistance	7.1%
Food stamps / SNAP	7.8%

Health indicators

Condition	%
High blood pressure	42.2%
High cholesterol	38.5%
Heart disease	9.0%
Stroke	4.2%
Asthma	10.3%
Arthritis	30.2%
Kidney disease	3.7%
Pulmonary disease	10.0%
Cancer	8.0%

Behavior / access	%
Binge drinking	12.1%
No physical activity	33.1%
Less than 7 hrs sleep	32.5%
Fair or poor health	20.2%
Poor mental health	15.7%
Poor physical health	13.8%
No health insurance	20.5%
Visited doctor (checkup)	76.8%
Visited dentist	57.3%
Cholesterol screening	88.7%
Teeth loss	20.2%

Veterans & disability

Veterans	Count	%
Civilian veterans	118	9.8%

Disability	%
Any disability	22.8%
Under 18	1.1%
18–64 years	29.2%
65 and over	35.9%

Health insurance coverage

Type	%
Private insurance	73.2%
Public insurance	40.9%
Uninsured under 19	3.1%

Language & origin

Language spoken at home (age 5+)

Language	Count	%
English only	1,508	92.2%
Spanish	147	9.7%
Other Indo-European	147	9.7%
Asian & Pacific Islander	0	0.0%
Other languages	0	0.0%

Place of birth & citizenship

Origin	Count	%
Native born (US)	1,456	89.0%
Born in same state	1,456	89.0%
Born in different state	916	56.0%
Foreign born	0	0.0%
Naturalized citizen	180	11.0%
Not a US citizen	16	8.9%

Ancestry

Ancestry	Count	%
Italian	167	10.2%
Arab	145	8.9%
Polish	112	6.8%

Ancestry	Count	%
French	95	5.8%
German	6	0.4%

Technology access

Metric	% of households
Computer access	35.9%
Internet access	93.9%

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

Frequently asked questions

What is the ZIP code for Buffalo, OK?

Buffalo, OK has one ZIP code: 73834.

What is the main ZIP code for Buffalo, OK?

The primary ZIP code for Buffalo, OK is 73834. The city uses area code 580 for phone service.

What county is Buffalo, OK in?

Buffalo is located in Harper County, Oklahoma.

How many ZIP codes are in Buffalo, OK?

Buffalo, OK has 1 ZIP code.

What ZIP code covers downtown Buffalo and the historic Harper County courthouse area?

Downtown Buffalo, including the Harper County courthouse, is located in ZIP code 73834, which serves as the central business and administrative district of the city.

What is the ZIP code for the Buffalo area near the Beaver River in Harper County?

The Buffalo area near the Beaver River, which flows through Harper County, uses ZIP code 73834 for all mail delivery and location identification purposes.