Oldenburg ZIP Codes — Franklin County, IN

There is one unique ZIP code in Oldenburg, Indiana and it is 47036. Area code: 765.

ZIP codes

17.80

sq mi land

0.06

sq mi water

765

area code

Oldenburg, IN ZIP code map

About Oldenburg, IN

Oldenburg, Indiana, is a quaint town located in Franklin County. Known for its rich European heritage, particularly its German influence, the town possesses a unique charm that attracts visitors. With a small-town atmosphere and friendly community, Oldenburg is a lovely place to live and visit.

Location & geography

Oldenburg is situated in southeastern Indiana, approximately 15 miles northwest of Cincinnati, Ohio. The town covers a land area of 17.80 square miles, with a minor water area of 0.06 square miles. The surrounding terrain is predominantly flat, making it ideal for agriculture and outdoor activities.

Community & economy

The character of Oldenburg is influenced heavily by its German heritage, which is evident in local festivals and community events. The local economy is primarily based on agriculture, along with small businesses that cater to residents and visitors. Daily life in Oldenburg is characterized by a close-knit community, where neighbors know each other and support local initiatives.

Transportation

Oldenburg is accessible via State Road 46, which connects the town to larger highways in the region. The nearest major airport is Cincinnati/Northern Kentucky International Airport, located about 40 miles away. Public transportation options are limited, but the community is walkable and bike-friendly.

History

Oldenburg was founded in the mid-19th century, primarily by German immigrants seeking a new life in America. The town has historically been known for its agricultural production, with many residents engaged in farming activities. Notable events in the town's history include the annual celebration of its heritage, which features traditional foods and music.

Did you know?

Oldenburg is home to the impressive St. Mary's Church, a significant landmark that showcases beautiful architecture. A little-known fact about the town is that it once sought to become the official capital of Franklin County before the decision was made to locate it in Brookville.

ZIP codes for Oldenburg, IN (1)

ZIP code	City	County	Map
47036	Oldenburg	Franklin	View map

Demographics & statistics

1,307

Population

43.2

Median age

$92,927

Median household income

$45,141

Per capita income

$344,200

Median home value

$836

Median monthly rent

86.5%

Home ownership

9.4%

Poverty rate

8.5%

Unemployment

352

Housing units

43.3%

Bachelor's or higher

Age distribution

Male Female

Under 5

5–9

10–14

115

15–19

170

20–24

25–34

35–44

105

45–54

55–59

60–64

65–74

75–84

85+

← Male

Female →

Age summary

Group	Count	%
Under 18	373	28.5%
18 and over	934	71.5%
65 and over	228	17.4%
Median age	43.2 years

Race & ethnicity

White 95.8%

Asian 3.1%

Two or more races 0.8%

Hispanic or Latino 0.3%

Group	Count	%
White	1,256	95.8%
Asian	40	3.1%
Two or more races	11	0.8%
Hispanic or Latino	4	0.3%

Household income

Under $10k 4.8%

$15k–$25k 3.3%

$25k–$35k 10.7%

$35k–$50k 5.9%

$50k–$75k 13.5%

$75k–$100k 20.9%

$100k–$150k 15.8%

$150k–$200k 12.0%

$200k+ 13.0%

Range	% of households
Under $10k	4.8%
$15k–$25k	3.3%
$25k–$35k	10.7%
$35k–$50k	5.9%
$50k–$75k	13.5%
$75k–$100k	20.9%
$100k–$150k	15.8%
$150k–$200k	12.0%
$200k+	13.0%
Median income	$92,927

Housing

Home values

$50k–$100k 6.2%

$100k–$150k 6.2%

$150k–$200k 10.6%

$200k–$300k 23.6%

$300k–$500k 28.3%

$500k–$1M 25.1%

Housing overview

Metric	Value
Median home value	$344,200
Median rent / month	$836
Owner occupied	86.5%
Renter occupied	13.5%
Vacant	3.2%
Single-family detached	89.9%
Large apartment buildings	4.2%
Mobile homes	0.0%
Median rooms	7.1
Avg household size (owned)	3.27

Year built

Era	%
2020 or later	0.0%
2010–2019	18.3%
2000–2009	17.3%
1990–1999	19.5%
1980–1989	0.5%
1970–1979	6.7%
1960–1969	7.4%
1950–1959	2.7%
1940–1949	2.5%
1939 or earlier	25.2%

Bedrooms

Size	% of units
No bedroom (studio)	0.0%
1 bedroom	3.5%
2 bedrooms	12.3%
3 bedrooms	38.5%
4 bedrooms	31.1%
5+ bedrooms	14.6%

Vehicles per household

Vehicles	% of households
No vehicle	3.3%
1 vehicle	15.8%
2 vehicles	31.9%
3 or more	49.0%

Heating fuel

Fuel type	%
Utility gas	31.6%
Electricity	28.1%
Propane / LP gas	21.2%
Wood	14.5%
No fuel used	1.3%

Households & families

Household type	Count	%
Married-couple family	270	68.9%
Cohabiting couple	3	0.8%
Male householder, no spouse	59	15.1%
Female householder, no spouse	60	15.3%
Households with children under 18	124	31.6%
Households with seniors (65+)	83	21.2%
Average household size	3.04

Marital status

Status	Male	Female
Never married	26.0%	55.0%
Married	68.2%	38.3%
Separated	0.0%	0.0%
Widowed	2.8%	5.8%
Divorced	3.0%	0.9%

Education

Less than 9th grade 1.3%

Some HS, no diploma 0.0%

HS graduate 22.5%

Some college, no degree 24.6%

Associate's degree 8.3%

Bachelor's degree 16.0%

Graduate / professional 27.3%

Metric	%
HS diploma or higher	98.7%
Bachelor's or higher	43.3%

School enrollment (ages 3–17)

Type	Count	%
Nursery / preschool	26	5.1%
Kindergarten	15	2.9%
Elementary school	120	23.5%
High school	198	38.7%
College / grad school	152	29.7%

Employment

Industry of employment

Education & healthcare 36.6%

Manufacturing 35.5%

Other services 10.3%

Retail trade 4.7%

Construction 4.4%

Professional & management 4.2%

Information 1.2%

Finance & real estate 1.2%

Public administration 1.2%

Agriculture & mining 0.3%

Arts, food & hospitality 0.3%

Occupation

Category	%
Management, business & arts	49.8%
Service	6.6%
Sales & office	7.0%
Natural resources & construction	7.0%
Production & transportation	29.6%

Employment type

Type	%
Private sector	77.5%
Government	21.4%
Self-employed	1.0%
Unpaid family workers	0.0%

Commute

Method	%
Drive alone	79.0%
Carpool	3.9%
Public transit	1.2%
Walk	2.5%
Other means	0.0%
Avg commute (minutes)	23.0

Poverty

All people 9.4%

Under 18 years 1.1%

18 and over 12.7%

Married-couple families 0.0%

Female-led households 7.1%

Income support

Source	% of households
Social Security	19.4%
Retirement income	16.1%
Supplemental Security	3.3%
Cash public assistance	0.3%
Food stamps / SNAP	0.3%

Health indicators

Condition	%
High blood pressure	36.6%
High cholesterol	34.5%
Heart disease	7.4%
Stroke	3.3%
Asthma	9.3%
Arthritis	29.3%
Kidney disease	3.2%
Pulmonary disease	7.9%
Cancer	9.0%

Behavior / access	%
Binge drinking	14.3%
No physical activity	23.8%
Less than 7 hrs sleep	30.5%
Fair or poor health	13.9%
Poor mental health	13.2%
Poor physical health	10.4%
No health insurance	10.4%
Visited doctor (checkup)	76.6%
Visited dentist	68.1%
Cholesterol screening	92.0%
Teeth loss	12.7%

Veterans & disability

Veterans	Count	%
Civilian veterans	33	3.5%

Disability	%
Any disability	12.9%
Under 18	8.0%
18–64 years	8.5%
65 and over	34.6%

Health insurance coverage

Type	%
Private insurance	84.5%
Public insurance	22.0%
Uninsured under 19	0.0%

Language & origin

Language spoken at home (age 5+)

Language	Count	%
English only	1,260	96.4%
Spanish	73	5.8%
Other Indo-European	18	1.4%
Asian & Pacific Islander	55	4.4%
Other languages	0	0.0%

Place of birth & citizenship

Origin	Count	%
Native born (US)	1,266	96.9%
Born in same state	1,257	96.2%
Born in different state	980	75.0%
Foreign born	9	0.7%
Naturalized citizen	41	3.1%
Not a US citizen	41	100.0%

Ancestry

Ancestry	Count	%
Italian	133	10.2%
Arab	37	2.8%
French	30	2.3%

Ancestry	Count	%
Irish	14	1.1%
Norwegian	3	0.2%

Technology access

Metric	% of households
Computer access	30.0%
Internet access	93.1%

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

Frequently asked questions

What ZIP codes does Oldenburg, IN have?

Oldenburg, IN has one ZIP code: 47036. Each ZIP code serves a distinct delivery area within the city and surrounding region.