Casstown ZIP Code List — Miami County, OH

There is one unique ZIP code in Casstown, Ohio and it is 45312. Area code: 326/937.

ZIP codes

27.33

sq mi land

0.01

sq mi water

326/937

area code

Casstown, OH ZIP code map

About Casstown, OH

Casstown is a small village located in Miami County, Ohio. Known for its tight-knit community and serene rural surroundings, Casstown provides a quiet lifestyle away from the hustle and bustle of urban areas. The village is rich in local character, making it an appealing place for those seeking a tranquil environment.

Location & geography

Casstown is situated in southwestern Ohio, approximately 12 miles northeast of Dayton and about 20 miles northwest of Springfield. The village encompasses a total land area of 27.33 square miles, with a minimal water area of 0.01 square miles. The terrain around Casstown features scenic farmlands and wooded areas, characteristic of the Miami County region.

Community & economy

The community in Casstown is known for its friendly atmosphere and welcoming residents, contributing to a strong sense of belonging among its members. Local industries primarily include agriculture and small businesses, which form the backbone of the local economy. Daily life in Casstown is often centered around community events, family gatherings, and outdoor activities, reflecting the village’s rural charm.

Transportation

Casstown is accessible via several local roads that connect to larger highways, facilitating travel to neighboring cities. The nearest major highways include State Route 55, which runs east-west, providing important connections within the region. For air travel, the nearest airport is Dayton International Airport, located approximately 15 miles to the southwest.

History

Casstown was founded in the early 19th century, primarily serving as a farming community. The village has experienced various developments over the years, although it has largely retained its small-town charm and familial atmosphere. Notable events in its history include the growth of local agriculture, which has significantly shaped the community's identity.

Did you know?

One surprising fact about Casstown is that it is home to a historical cemetery that dates back to the village's founding, providing a glimpse into its early history. Additionally, despite its small size, Casstown hosts annual events that draw in visitors from surrounding areas, highlighting its vibrant community spirit.

ZIP codes for Casstown, OH (1)

ZIP code	City	County	Map
45312	Casstown	Miami	View map

Demographics & statistics

947

Population

51.4

Median age

$64,545

Median household income

$36,823

Per capita income

$198,900

Median home value

$1,057

Median monthly rent

86.7%

Home ownership

0.6%

Poverty rate

7.0%

Unemployment

398

Housing units

12.7%

Bachelor's or higher

Age distribution

Male Female

Under 5

5–9

10–14

15–19

20–24

25–34

35–44

45–54

55–59

60–64

65–74

75–84

85+

← Male

Female →

Age summary

Group	Count	%
Under 18	177	18.7%
18 and over	770	81.3%
65 and over	302	31.9%
Median age	51.4 years

Race & ethnicity

White 94.4%

Two or more races 3.5%

Hispanic or Latino 2.1%

Group	Count	%
White	913	94.4%
Two or more races	34	3.5%
Hispanic or Latino	20	2.1%

Household income

Under $10k 1.4%

$15k–$25k 8.5%

$25k–$35k 11.6%

$35k–$50k 9.9%

$50k–$75k 26.3%

$75k–$100k 17.9%

$100k–$150k 16.9%

$150k–$200k 3.6%

$200k+ 3.9%

Range	% of households
Under $10k	1.4%
$15k–$25k	8.5%
$25k–$35k	11.6%
$35k–$50k	9.9%
$50k–$75k	26.3%
$75k–$100k	17.9%
$100k–$150k	16.9%
$150k–$200k	3.6%
$200k+	3.9%
Median income	$64,545

Housing

Home values

Under $50k 1.9%

$50k–$100k 7.5%

$100k–$150k 17.3%

$150k–$200k 23.7%

$200k–$300k 26.7%

$300k–$500k 16.4%

$500k–$1M 3.9%

$1M+ 2.5%

Housing overview

Metric	Value
Median home value	$198,900
Median rent / month	$1,057
Owner occupied	86.7%
Renter occupied	13.3%
Vacant	8.6%
Single-family detached	95.6%
Large apartment buildings	0.0%
Mobile homes	0.0%
Median rooms	6.7
Avg household size (owned)	2.26

Year built

Era	%
2020 or later	0.0%
2010–2019	0.7%
2000–2009	6.6%
1990–1999	11.5%
1980–1989	3.8%
1970–1979	14.3%
1960–1969	13.7%
1950–1959	3.1%
1940–1949	6.2%
1939 or earlier	40.2%

Bedrooms

Size	% of units
No bedroom (studio)	0.0%
1 bedroom	3.8%
2 bedrooms	9.9%
3 bedrooms	61.8%
4 bedrooms	19.9%
5+ bedrooms	4.6%

Vehicles per household

Vehicles	% of households
No vehicle	0.2%
1 vehicle	19.8%
2 vehicles	50.5%
3 or more	29.5%

Heating fuel

Fuel type	%
Utility gas	21.7%
Electricity	31.9%
Propane / LP gas	23.9%
Fuel oil	7.7%
Wood	5.1%

Households & families

Household type	Count	%
Married-couple family	227	54.8%
Cohabiting couple	8	1.9%
Male householder, no spouse	98	23.7%
Female householder, no spouse	81	19.6%
Households with children under 18	85	20.5%
Households with seniors (65+)	178	43.0%
Average household size	2.29

Marital status

Status	Male	Female
Never married	27.5%	17.0%
Married	56.1%	60.1%
Separated	3.0%	3.1%
Widowed	7.2%	12.8%
Divorced	6.2%	7.0%

Education

Less than 9th grade 1.5%

Some HS, no diploma 2.4%

HS graduate 31.6%

Some college, no degree 40.1%

Associate's degree 11.8%

Bachelor's degree 10.0%

Graduate / professional 2.7%

Metric	%
HS diploma or higher	96.1%
Bachelor's or higher	12.7%

School enrollment (ages 3–17)

Type	Count	%
Nursery / preschool	4	2.1%
Kindergarten	6	3.2%
Elementary school	85	44.7%
High school	63	33.2%
College / grad school	32	16.8%

Employment

Industry of employment

Education & healthcare 19.2%

Manufacturing 15.8%

Professional & management 12.2%

Retail trade 11.9%

Arts, food & hospitality 11.1%

Construction 7.8%

Agriculture & mining 5.4%

Other services 4.1%

Public administration 3.4%

Wholesale trade 3.1%

Finance & real estate 3.1%

Transportation & utilities 2.1%

Information 0.8%

Occupation

Category	%
Management, business & arts	30.3%
Service	23.8%
Sales & office	19.9%
Natural resources & construction	11.9%
Production & transportation	14.0%

Employment type

Type	%
Private sector	79.5%
Government	11.1%
Self-employed	9.3%
Unpaid family workers	0.0%

Commute

Method	%
Drive alone	78.0%
Carpool	15.8%
Public transit	0.0%
Walk	0.0%
Other means	0.0%
Avg commute (minutes)	22.5

Poverty

All people 0.6%

Under 18 years 0.0%

18 and over 0.8%

Married-couple families 0.0%

Female-led households 0.0%

Income support

Source	% of households
Social Security	45.4%
Retirement income	25.8%
Supplemental Security	5.3%
Cash public assistance	0.5%
Food stamps / SNAP	1.0%

Health indicators

Condition	%
High blood pressure	34.6%
High cholesterol	33.1%
Heart disease	7.6%
Stroke	3.3%
Asthma	9.8%
Arthritis	29.1%
Kidney disease	3.0%
Pulmonary disease	9.0%
Cancer	7.4%

Behavior / access	%
Binge drinking	18.3%
No physical activity	26.3%
Less than 7 hrs sleep	35.3%
Fair or poor health	14.3%
Poor mental health	16.0%
Poor physical health	10.6%
No health insurance	11.3%
Visited doctor (checkup)	74.1%
Visited dentist	63.9%
Cholesterol screening	89.3%
Teeth loss	13.8%

Veterans & disability

Veterans	Count	%
Civilian veterans	108	14.0%

Disability	%
Any disability	16.7%
Under 18	0.0%
18–64 years	9.4%
65 and over	37.7%

Health insurance coverage

Type	%
Private insurance	78.7%
Public insurance	39.4%
Uninsured under 19	6.2%

Language & origin

Language spoken at home (age 5+)

Language	Count	%
English only	908	95.9%
Spanish	0	0.0%
Other Indo-European	0	0.0%
Asian & Pacific Islander	0	0.0%
Other languages	0	0.0%

Place of birth & citizenship

Origin	Count	%
Native born (US)	947	100.0%
Born in same state	947	100.0%
Born in different state	828	87.4%
Foreign born	0	0.0%
Naturalized citizen	0	0.0%
Not a US citizen	0	0.0%

Ancestry

Ancestry	Count	%
Arab	154	16.3%
French	132	13.9%

Ancestry	Count	%
Italian	52	5.5%
Polish	3	0.3%

Technology access

Metric	% of households
Computer access	43.7%
Internet access	90.6%

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

Frequently asked questions

What is the ZIP code for Casstown, OH?

Casstown, OH has one ZIP code: 45312.

What is the main ZIP code for Casstown, OH?

The primary ZIP code for Casstown, OH is 45312. The city uses area code 326 or 937 for phone service.

What county is Casstown, OH in?

Casstown is located in Miami County, Ohio.

How many ZIP codes are in Casstown, OH?

Casstown, OH has 1 ZIP code.

What ZIP code should I use when mailing correspondence to businesses in downtown Casstown, Ohio?

Downtown Casstown uses the ZIP code 45312, which serves the central business district and surrounding residential areas of this Miami County community.

If I'm shipping a package to someone living in Casstown, OH, what is the correct ZIP code to ensure delivery?

All mail to Casstown residents and businesses should be addressed to ZIP code 45312, as this is the sole ZIP code designated for this municipality.