73834 ZIP Code — Buffalo, OK

Harper County, Oklahoma

ZIP code 73834 is located in Buffalo, Oklahoma, within Harper County. It covers approximately 458.12 square miles and serves a population of 1,636 residents. This is a standard ZIP code in the Central (CT) timezone, served by area code 580.

About ZIP code 73834

The housing stock consists of predominantly single-family detached homes. Most homes were built in the 1960s, giving the area an established character. Median home value is $91,100. Owner-occupancy is high at 86%, well above the national average.

Median household income is $68,750. 41% of households receive Social Security income, suggesting a notable retiree or disability population.

The dominant occupation class is management, business, and professional, with agriculture and mining as the leading industry. The average commute of 16 minutes is near the national average.

College attainment at 17% is below the national average, consistent with a trades and production-oriented local economy.

Health indicators show elevated rates of smoking (20%) compared to national benchmarks.

Notable community characteristics include disability rates above the national average at 23%.

Overall, ZIP code 73834 reflects a community defined by a trades-oriented workforce, high homeownership, and a significant Social Security-dependent population.

1,636

population

458.12

sq mi land

Standard

ZIP type

Central (CT)

timezone

73834 ZIP code map

Cities in ZIP code 73834

Below are the cities the US Postal Service accepts for ZIP code 73834. Using any city not on this list may result in mail delivery delays.

City	Status
Buffalo	Acceptable
Buffalo	Preferred

Nearby ZIP codes

73851 May (13.4 mi) 73842 Freedom (17.9 mi) 73841 Fort Supply (19.8 mi)

Demographics updated 05/2026

Population
Total population	1,636
Population density	4 / sq mi
State FIPS	40
County FIPS	059

Geography
Land area	458.12 sq mi
Water area	0.87 sq mi
Latitude	36.7968
Longitude	-99.5346
Timezone	Central (CT)
Area code	580

Total population by age

Gender

Race & ethnicity

Economics updated 05/2026

Household income

Income range	This ZIP	County avg	State avg
Under $50k	51.5%	53.1%	46.5%
$50k – $100k	36.7%	33.3%	31.0%
$100k – $200k	10.6%	13.0%	18.1%
Over $200k	1.2%	0.6%	4.5%

Demographics & statistics

1,636

Population

People per sq mi

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

Income range	This ZIP	County avg	State avg
Under $50k	51.5%	53.1%	46.5%
$50k – $100k	36.7%	33.3%	31.0%
$100k – $200k	10.6%	13.0%	18.1%
Over $200k	1.2%	0.6%	4.5%

$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%
Work from home	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	%
Obesity	37.0%
High blood pressure	42.2%
High cholesterol	38.5%
Diabetes	12.8%
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	%
Smoking	20.1%
Binge drinking	12.1%
No physical activity	33.1%
Less than 7 hrs sleep	32.5%
Depression	23.9%
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%
No insurance	7.5%
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 about ZIP code 73834

What city is ZIP code 73834 in?

ZIP code 73834 is primarily assigned to Buffalo, Oklahoma.

What county is ZIP code 73834 in?

ZIP code 73834 falls within Harper County, Oklahoma.

Is ZIP code 73834 mostly owner-occupied?

86% of occupied units in ZIP code 73834 are owner-occupied, well above the national average.

Does ZIP code 73834 have a large retiree population?

41% of households in ZIP code 73834 receive Social Security income, suggesting a significant retiree or disability population.

What is the typical home value in ZIP code 73834?

The median home value in ZIP code 73834 is $91,100.

Does ZIP code 73834 have a large veteran population?

10% of civilians in ZIP code 73834 are veterans, above the national average of ~7%.

What timezone is ZIP code 73834 in?

ZIP code 73834 observes the CST timezone.