Vassar ZIP Codes — Osage County, KS

There is one unique ZIP code in Vassar, Kansas and it is 66543. Area code: 785.

ZIP codes

8.87

sq mi land

0.01

sq mi water

785

area code

Vassar, KS ZIP code map

About Vassar, KS

Vassar is a small yet welcoming community located in Osage County, Kansas. This quiet town has a rich local culture and a close-knit atmosphere that attracts residents who appreciate small-town living. With its serene landscapes and friendly neighbors, Vassar offers a peaceful retreat for those looking to escape the hustle and bustle of larger cities.

Location & geography

Vassar is situated in east-central Kansas, nestled within Osage County. It is conveniently located near the towns of Lyndon, which is about 10 miles to the west, and Burlingame, approximately 7 miles to the northeast, as well as the city of Ottawa to the south, about 18 miles away. The town covers a land area of 8.87 square miles, with a small water area of just 0.01 square miles, giving it a predominantly land-based terrain.

Community & economy

The character of Vassar reflects the charm of rural Kansas, with strong ties among its residents and a focus on community values. Many locals are engaged in farming and agriculture, which is a key industry in the area, while others might find work in nearby towns. Daily life in Vassar is marked by community events, local gatherings, and a pace that allows for deep connections among its inhabitants.

Transportation

Vassar is accessible via several local roads, with Kansas Highway 31 serving as a primary route through the area. The nearest significant airport is the Topeka Regional Airport, located approximately 35 miles to the northwest. Public transportation options may be limited, but residents typically rely on personal vehicles for commuting and travel.

History

Vassar's founding dates back to the late 19th century, emerging as a small agricultural community in Kansas. The town's growth was spurred by the development of the railroad, which facilitated trade and commerce in the region. Over the years, Vassar has maintained its identity, focusing on local industries such as farming and small businesses.

Did you know?

One little-known fact about Vassar is that it is home to a piece of Kansas history, having been part of the railroad expansion that shaped many small towns in the region. Additionally, Vassar holds a unique charm with its scenic landscapes that offer beautiful views year-round.

ZIP codes for Vassar, KS (1)

ZIP code	City	County	Map
66543	Vassar	Osage	View map

Demographics & statistics

1,044

Population

45.4

Median age

$85,536

Median household income

$40,764

Per capita income

$160,700

Median home value

$1,053

Median monthly rent

87.0%

Home ownership

5.4%

Poverty rate

4.0%

Unemployment

416

Housing units

22.6%

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	187	17.9%
18 and over	857	82.1%
65 and over	184	17.6%
Median age	45.4 years

Race & ethnicity

White 89.9%

Two or more races 5.9%

Hispanic or Latino 2.4%

Other race 1.8%

Group	Count	%
White	962	89.9%
Two or more races	63	5.9%
Hispanic or Latino	26	2.4%
Other race	19	1.8%

Household income

$10k–$15k 5.1%

$15k–$25k 4.4%

$25k–$35k 11.1%

$35k–$50k 8.1%

$50k–$75k 19.2%

$75k–$100k 10.9%

$100k–$150k 24.3%

$150k–$200k 3.5%

$200k+ 13.4%

Range	% of households
$10k–$15k	5.1%
$15k–$25k	4.4%
$25k–$35k	11.1%
$35k–$50k	8.1%
$50k–$75k	19.2%
$75k–$100k	10.9%
$100k–$150k	24.3%
$150k–$200k	3.5%
$200k+	13.4%
Median income	$85,536

Housing

Home values

Under $50k 11.7%

$50k–$100k 12.8%

$100k–$150k 18.6%

$150k–$200k 21.3%

$200k–$300k 30.3%

$300k–$500k 5.3%

Housing overview

Metric	Value
Median home value	$160,700
Median rent / month	$1,053
Owner occupied	87.0%
Renter occupied	13.0%
Vacant	8.5%
Single-family detached	84.5%
Large apartment buildings	0.0%
Mobile homes	11.9%
Median rooms	5.9
Avg household size (owned)	2.48

Year built

Era	%
2020 or later	0.0%
2010–2019	0.6%
2000–2009	12.9%
1990–1999	17.4%
1980–1989	19.7%
1970–1979	19.1%
1960–1969	20.8%
1950–1959	1.3%
1940–1949	4.4%
1939 or earlier	3.8%

Bedrooms

Size	% of units
No bedroom (studio)	0.0%
1 bedroom	0.2%
2 bedrooms	34.5%
3 bedrooms	40.5%
4 bedrooms	15.7%
5+ bedrooms	9.1%

Vehicles per household

Vehicles	% of households
No vehicle	1.4%
1 vehicle	21.8%
2 vehicles	32.2%
3 or more	44.7%

Heating fuel

Fuel type	%
Utility gas	1.4%
Electricity	56.3%
Propane / LP gas	34.0%
Wood	8.3%

Households & families

Household type	Count	%
Married-couple family	240	55.6%
Cohabiting couple	41	9.5%
Male householder, no spouse	98	22.7%
Female householder, no spouse	53	12.3%
Households with children under 18	83	19.2%
Households with seniors (65+)	141	32.6%
Average household size	2.42

Marital status

Status	Male	Female
Never married	18.8%	18.2%
Married	57.2%	47.7%
Separated	7.0%	0.0%
Widowed	2.5%	15.0%
Divorced	14.6%	19.2%

Education

Less than 9th grade 0.0%

Some HS, no diploma 3.0%

HS graduate 34.0%

Some college, no degree 28.6%

Associate's degree 11.8%

Bachelor's degree 14.8%

Graduate / professional 7.8%

Metric	%
HS diploma or higher	97.0%
Bachelor's or higher	22.6%

School enrollment (ages 3–17)

Type	Count	%
Nursery / preschool	10	5.4%
Kindergarten	16	8.6%
Elementary school	96	51.9%
High school	22	11.9%
College / grad school	41	22.2%

Employment

Industry of employment

Education & healthcare 29.2%

Professional & management 17.2%

Transportation & utilities 10.0%

Arts, food & hospitality 8.7%

Manufacturing 7.4%

Finance & real estate 5.6%

Public administration 5.1%

Retail trade 4.5%

Construction 3.8%

Other services 2.9%

Agriculture & mining 2.5%

Information 2.0%

Wholesale trade 1.1%

Occupation

Category	%
Management, business & arts	29.3%
Service	25.7%
Sales & office	12.0%
Natural resources & construction	17.0%
Production & transportation	15.9%

Employment type

Type	%
Private sector	84.6%
Government	11.8%
Self-employed	3.6%
Unpaid family workers	0.0%

Commute

Method	%
Drive alone	80.6%
Carpool	5.8%
Public transit	0.0%
Walk	6.5%
Other means	0.0%
Avg commute (minutes)	38.8

Poverty

All people 5.4%

Under 18 years 0.0%

18 and over 6.5%

Married-couple families 0.0%

Female-led households 0.0%

Income support

Source	% of households
Social Security	31.7%
Retirement income	19.0%
Supplemental Security	6.0%
Cash public assistance	6.0%
Food stamps / SNAP	1.2%

Health indicators

Condition	%
High blood pressure	39.5%
High cholesterol	39.0%
Heart disease	8.1%
Stroke	3.4%
Asthma	9.3%
Arthritis	29.4%
Kidney disease	3.3%
Pulmonary disease	7.8%
Cancer	8.4%

Behavior / access	%
Binge drinking	15.4%
No physical activity	25.3%
Less than 7 hrs sleep	32.6%
Fair or poor health	14.5%
Poor mental health	12.7%
Poor physical health	10.7%
No health insurance	13.0%
Visited doctor (checkup)	76.8%
Visited dentist	66.4%
Cholesterol screening	91.2%
Teeth loss	12.8%

Veterans & disability

Veterans	Count	%
Civilian veterans	82	9.6%

Disability	%
Any disability	17.4%
Under 18	0.0%
18–64 years	15.8%
65 and over	41.3%

Health insurance coverage

Type	%
Private insurance	77.9%
Public insurance	32.7%
Uninsured under 19	0.0%

Language & origin

Language spoken at home (age 5+)

Language	Count	%
English only	1,003	96.1%
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)	1,021	97.8%
Born in same state	1,017	97.4%
Born in different state	805	77.1%
Foreign born	4	0.4%
Naturalized citizen	23	2.2%
Not a US citizen	23	100.0%

Ancestry

Ancestry	Count	%
French	164	15.7%
Italian	152	14.6%

Ancestry	Count	%
Arab	58	5.6%
Dutch	15	1.4%

Technology access

Metric	% of households
Computer access	41.4%
Internet access	96.5%

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

Frequently asked questions

What ZIP codes does Vassar, KS have?

Vassar, KS has one ZIP code: 66543. Each ZIP code serves a distinct delivery area within the city and surrounding region.