Zip code 45321: Eldorado, Ohio

Q: What city is zip code 45321?

45321 is assigned to Eldorado, Ohio. The city name is the one the Postal Service prefers for mail addressed to this zip code.

Q: What county is 45321 in?

45321 is in Preble County, Ohio.

Q: What is the population of 45321?

About 1,272 people live in 45321, according to the Census Bureau's American Community Survey.

Q: What is the median household income in 45321?

The median household income in 45321 is $69,135.

Q: What zip codes are near 45321?

The closest zip codes to 45321 are 45347, 45382, 45338, 45320, 45346.

Residential delivery areaPreble CountyEastern Time

Population

1,272

Median household income

$69K

U.S. $81K

Median home value

$151K

U.S. $333K

Median rent

$1,012/mo

U.S. $1,413

Median age

29.1

U.S. 38.9

Land area

14 sq mi

90 people/sq mi

Boundary is the Census Bureau's ZIP Code Tabulation Area, which closely tracks the postal delivery area.

About 45321

45321 is a small-town zip code in Eldorado, Ohio (Preble County), covering 14 sq mi of land. About 1,272 people live here, or 90 per square mile. The median resident is 29.1 years old, compared with 38.9 nationally.

The median household earns $69,135 a year, 14% below the national median of $80,734. 11.5% of residents live below the poverty line (U.S.: 12.5%). A typical home is valued at $150,900, or 2.2 years of median household income (U.S.: 4.1 years), which makes homes relatively affordable for local earners. 88% of occupied homes are lived in by their owners, and renters pay a median of $1,012 a month.

14% of adults hold a bachelor's degree or higher (U.S.: 36%). Commuters average 30.5 minutes each way, and 6% of workers work from home. The most common jobs among working residents are in healthcare; construction and repair; and production and manufacturing.

How 45321 compares

Sorted from highest to lowest national percentile

Residents under 1831.7%
98th
U.S. 22% · OH 22%77th of 1,168 in OH
Healthcare workers17.4%
98th
U.S. 9.7% · OH 10.5%89th of 1,163 in OH
Veterans13.1%
96th
U.S. 6.2% · OH 6.6%56th of 1,168 in OH
Homeownership rate88.4%
94th
StrengthU.S. 65.2% · OH 67.2%205th of 1,159 in OH
Average commute30.5 min
76th
U.S. 26.4 min · OH 23.4 min194th of 1,121 in OH
Uninsured rate9.5%
68th
U.S. 8.4% · OH 6.4%208th of 1,165 in OH
Poverty rate11.5%
53rd
U.S. 12.5% · OH 13.3%535th of 1,159 in OH
Self-employed workers9%
46th
U.S. 10% · OH 8.1%442nd of 1,163 in OH
Median household income$69,135
34th
U.S. $80,734 · OH $71,389599th of 1,122 in OH
Government workers11.7%
33rd
U.S. 14.5% · OH 12.9%651st of 1,163 in OH
Per capita income$31,472
23rd
U.S. $44,673 · OH $40,552775th of 1,165 in OH
Median gross rent$1,012
22nd
U.S. $1,413 · OH $1,034312th of 1,007 in OH
Residents 65 and older12.5%
20th
U.S. 17.2% · OH 18.3%1,007th of 1,168 in OH
Median earnings per worker$39,578
20th
WeaknessU.S. $49,666 · OH $47,692876th of 1,153 in OH
Income inequality (Gini)0.399
20th
StrengthU.S. 0.483 · OH 0.467693rd of 1,156 in OH
Work from home6.4%
13th
U.S. 15.1% · OH 13%739th of 1,163 in OH
Population density90/sq mi
12th
U.S. 95/sq mi · OH 289/sq mi793rd of 1,168 in OH
Median home value$150,900
9th
U.S. $332,700 · OH $214,800789th of 1,114 in OH
Bachelor's degree or higher14.3%
8th
WeaknessU.S. 35.7% · OH 31.5%815th of 1,166 in OH
Broadband access81.4%
6th
WeaknessU.S. 91% · OH 90.1%960th of 1,159 in OH
Tech workers0.2%
4th
U.S. 3.8% · OH 3.2%859th of 1,163 in OH
Median age29.1
3rd
U.S. 38.9 · OH 39.71,113th of 1,166 in OH
Housing vacancy1.9%
3rd
U.S. 10.1% · OH 8.1%1,040th of 1,160 in OH
Population1,272
2nd
U.S. 334,922,499 · OH 11,810,293887th of 1,168 in OH
Diversity index6.3
2nd
U.S. 61.4 · OH 40.6962nd of 1,168 in OH
Unemployment rate0.5%
1st
StrengthU.S. 5.2% · OH 4.8%1,029th of 1,164 in OH
Foreign-born residents0.1%
1st
U.S. 14.1% · OH 5.2%875th of 1,168 in OH
Rent-burdened renters15.9%
1st
StrengthU.S. 51.1% · OH 45.9%983rd of 1,113 in OH

Measure	45321	Preble	OH	U.S.	National percentile	Rank in OH
Residents under 18	31.7%	22.2%	22%	22%	98th	77th of 1,168
Healthcare workers	17.4%	10.3%	10.5%	9.7%	98th	89th of 1,163
Veterans	13.1%	7.7%	6.6%	6.2%	96th	56th of 1,168
Homeownership rateStrength	88.4%	79.7%	67.2%	65.2%	94th	205th of 1,159
Average commute	30.5 min	26.4 min	23.4 min	26.4 min	76th	194th of 1,121
Uninsured rate	9.5%	5.4%	6.4%	8.4%	68th	208th of 1,165
Poverty rate	11.5%	12.6%	13.3%	12.5%	53rd	535th of 1,159
Self-employed workers	9%	7.9%	8.1%	10%	46th	442nd of 1,163
Median household income	$69,135	$69,223	$71,389	$80,734	34th	599th of 1,122
Government workers	11.7%	13.7%	12.9%	14.5%	33rd	651st of 1,163
Per capita income	$31,472	$34,711	$40,552	$44,673	23rd	775th of 1,165
Median gross rent	$1,012	$794	$1,034	$1,413	22nd	312th of 1,007
Residents 65 and older	12.5%	20.4%	18.3%	17.2%	20th	1,007th of 1,168
Median earnings per workerWeakness	$39,578	$45,090	$47,692	$49,666	20th	876th of 1,153
Income inequality (Gini)Strength	0.399	0.406	0.467	0.483	20th	693rd of 1,156
Work from home	6.4%	7.3%	13%	15.1%	13th	739th of 1,163
Population density	90/sq mi	96/sq mi	289/sq mi	95/sq mi	12th	793rd of 1,168
Median home value	$150,900	$180,900	$214,800	$332,700	9th	789th of 1,114
Bachelor's degree or higherWeakness	14.3%	18.5%	31.5%	35.7%	8th	815th of 1,166
Broadband accessWeakness	81.4%	88%	90.1%	91%	6th	960th of 1,159
Tech workers	0.2%	1.4%	3.2%	3.8%	4th	859th of 1,163
Median age	29.1	43.3	39.7	38.9	3rd	1,113th of 1,166
Housing vacancy	1.9%	7.8%	8.1%	10.1%	3rd	1,040th of 1,160
Population	1,272	40,765	11,810,293	334,922,499	2nd	887th of 1,168
Diversity index	6.3	9.7	40.6	61.4	2nd	962nd of 1,168
Unemployment rateStrength	0.5%	3.2%	4.8%	5.2%	1st	1,029th of 1,164
Foreign-born residents	0.1%	0.6%	5.2%	14.1%	1st	875th of 1,168
Rent-burdened rentersStrength	15.9%	37.4%	45.9%	51.1%	1st	983rd of 1,113

The percentile is the share of Americans who live in a zip code with a lower value, so the 50th percentile is typical. Rank 1 is the highest value in the state. Both include zip codes with at least 100 residents. Strengths and weaknesses mark measures in the best or worst fifth nationally, where higher or lower is clearly better (income, poverty, education, commute, broadband, insurance and similar). Measures like age or density are left unmarked.

People

Age

13%

Under 5

18%

5–17

11%

18–24

18%

25–34

10%

35–44

10%

45–54

55–64

65–74

75+

Median age

29.1

Under 18

31.7%

65 and over

12.5%

Race and ethnicity

White97%
Black0%
Hispanic0.4%
Asian0%
Native American0%
Pacific Islander0%
Other2%
Multiracial1%

Diversity index

6.3

U.S. 61.4

Foreign-born

0.1%

U.S. 14.1%

Born in state

71.1%

Language spoken at home (households)

English only

99%

Spanish

Other Indo-European

Asian / Pacific

Other

Households

Households: 424
Average household size: 3
Family households: 70%
Married couples: 57.5%
Living alone: 27.4%
Veterans (of adults): 13.1%
Male / female: 52% / 48%

Income and poverty

Household income distribution

<$25k

$25–50k

24%

$50–75k

24%

$75–100k

21%

$100–150k

$150–200k

$200k+

Median household income

45321

$69,135

Preble Co.

$69,223

Ohio

$71,389

United States

$80,734

Per capita income

$31,472

U.S. $44,673

Poverty rate

11.5%

U.S. 12.5%

Households earning $150K+

14.6%

U.S. 23%

Income inequality (Gini)

0.399

U.S. 0.483

Housing

Median home value

45321

$150,900

Preble Co.

$180,900

Ohio

$214,800

United States

$332,700

Median gross rent

45321

$1,012

Preble Co.

$794

Ohio

$1,034

United States

$1,413

Types of housing

Single-family

98%

2–4 units

5–19 units

20+ units

Mobile home

Boat, RV, van

Housing units: 432
Owner-occupied: 88.4%
Vacant: 1.9%
Median year built: 1939 or earlier
Median rooms: 6.4
Renters paying 30%+ of income: 15.9%
Renters paying 50%+ of income: 0%
Home value to income: 2.2× (U.S. 4.1×)

Work and commute

How people get to work

Drove alone

80%

Carpooled

13%

Transit

Walked

Bicycle

Worked from home

Other

Commute time (one way)

<10 min

12%

10–19

17%

20–29

33%

30–44

12%

45–59

19%

60+

Average commute

30.5 min

U.S. 26.4 min

Unemployment

0.5%

U.S. 5.2%

In labor force

66.9%

U.S. 63.5%

Jobs and careers

What employed residents do, wherever they work

Occupations

Healthcare

17%

Construction and repair

17%

Production

16%

Management

13%

Transportation and moving

13%

Office and admin

Food service

Engineering and science

Cleaning and personal care

Education

Arts, media and sports

Sales

Legal and social services

0.7%

Business and finance

0.3%

Computer and math

0.2%

Police and fire

Farming, fishing and forestry

Industries

Manufacturing

27%

Health care and social assistance

23%

Construction

15%

Restaurants and hotels

Professional and technical services

Transportation, warehousing and utilities

Public administration

Agriculture and mining

Retail

Other services

Information

Finance, insurance and real estate

Admin, support and management

0.5%

Wholesale

0.5%

Education

0.3%

Arts and recreation

Median earnings per worker

$39,578

U.S. $49,666

Self-employed

U.S. 10%

Government workers

11.7%

U.S. 14.5%

Nonprofit workers

0.8%

U.S. 8.8%

Median earnings by type of work

Type of work	45321	U.S.
Management, business, science and arts	$50,446	$74,888
Service	$7,917	$26,804
Sales and office	$37,188	$40,476
Construction and maintenance	$37,244	$49,199
Production and transportation	$46,250	$39,989

Education, internet and health coverage

Highest education (adults 25+)

No diploma

High school

55%

Some college

10%

Associate's

12%

Bachelor's

12%

Graduate

High school graduate or higher: 91%
Bachelor's degree or higher: 14.3%
Graduate or professional degree: 1.9%
Households with broadband: 81.4%
Cable, fiber or DSL: 68.2%
No internet access: 18.6%
Without health insurance: 9.5%
Limited-English households: 0%

Geography

City (USPS): Eldorado
State: Ohio
County: Preble County
Center point: 39.8653° N, 84.6870° W
Land area: 14 sq mi
Water area: under 0.1 sq mi
Time zone: Eastern Time (UTC-5, UTC-4 in summer)
Zip type: Residential delivery area

Cities and towns within this zip

Eldorado2% of zip

Census places overlapping the zip's area. Mail may use a different city name than the municipality.

Zip codes near 45321

Search by radius

Zip	City	Distance	Population	IncomeMedian income	Home value
45347	New Paris, OH	4.3 mi	4,095	$63,025	$136,700
45382	West Manchester, OH	4.7 mi	1,154	$95,652	$200,000
45338	Lewisburg, OH	7.6 mi	4,761	$74,776	$191,900
45320	Eaton, OH	7.9 mi	15,454	$64,903	$186,200
45346	New Madison, OH	8.2 mi	1,663	$77,083	$161,300
45332	Hollansburg, OH	11 mi	716	$77,250	$114,000
45378	Verona, OH	11 mi	539	$73,000	$123,300
47374	Richmond, IN	11 mi	44,615	$50,766	$130,700
47375	Richmond, IN · PO box	11 mi	—	—	—
45304	Arcanum, OH	12 mi	7,599	$78,125	$190,200
47324	Boston, IN	12 mi	246	$70,893	$75,500
45381	West Alexandria, OH	13 mi	5,626	$62,263	$204,900

Zip codes like 45321 elsewhere

Matched on income, home values, age, density, education, housing and commuting

Questions about 45321

What city is zip code 45321?

45321 is assigned to Eldorado, Ohio. The city name is the one the Postal Service prefers for mail addressed to this zip code.

What county is 45321 in?

45321 is in Preble County, Ohio.

What is the population of 45321?

About 1,272 people live in 45321, according to the Census Bureau's American Community Survey.

What time zone is 45321 in?

45321 is in Eastern Time.

What is the median household income in 45321?

The median household income in 45321 is $69,135.

What zip codes are near 45321?

The closest zip codes to 45321 are 45347, 45382, 45338, 45320, 45346.

Demographic figures are 2020–2024 American Community Survey 5-year estimates for ZIP Code Tabulation Area 45321, from the U.S. Census Bureau. Small areas have wide margins of error. How we build these numbers.