Colby ZIP Codes — Thomas County, KS

There is one unique ZIP code in Colby, Kansas and it is 67701. Area code: 785.

ZIP codes

450.06

sq mi land

0.03

sq mi water

785

area code

Colby, KS ZIP code map

About Colby, KS

Colby, Kansas, is a charming city located in the western part of the state, renowned for its rich agricultural heritage and welcoming atmosphere. Situated in Thomas County, it serves as an essential hub for the surrounding rural communities. With its wide, open spaces and strong sense of community, Colby embodies the spirit of small-town life in the heartland of America.

Location & geography

Colby lies approximately 30 miles east of the Colorado border and 150 miles west of the city of Topeka, Kansas. It is surrounded by the cities of Goodland to the west, Oakley to the southeast, Norton to the northeast, and Hoxie to the south, making it a central point in Thomas County. The city covers a vast land area of 450.06 square miles, with a minimal water area of 0.03 square miles, showcasing the expansive prairie landscape characteristic of the region.

Community & economy

The community of Colby is known for its friendly residents and a strong sense of civic pride. Agriculture plays a crucial role in the local economy, with many residents involved in farming and related industries. Daily life in Colby is characterized by local events, community gatherings, and various recreational opportunities that foster strong interpersonal relationships among its residents.

Transportation

Colby is served by U.S. Route 24, which runs through the city and provides access to neighboring towns and cities. The nearest major airport is the Goodland Municipal Airport, located about 26 miles to the west. Local transit options are limited, making personal vehicles the primary mode of transportation for residents.

History

Colby was founded in 1886, originally serving as a railroad town that quickly developed due to its location and the surrounding agricultural land. Throughout its history, Colby has been closely tied to the farming industry, and it has hosted several notable events, including the annual Thomas County Fair. The city has evolved over the years to accommodate growth while maintaining its agricultural roots.

Did you know?

A little-known fact about Colby is that it is home to the Prairie Museum of Art and History, which showcases the region's culture and landscape. Additionally, Colby is nicknamed 'The Oasis on the Plains' due to its lush parks and green spaces that stand out in the expansive plains of western Kansas.

ZIP codes for Colby, KS (1)

ZIP code	City	County	Map
67701	Colby	Thomas	View map

Demographics & statistics

6,220

Population

33.9

Median age

$68,063

Median household income

$37,409

Per capita income

$167,400

Median home value

$740

Median monthly rent

68.2%

Home ownership

7.1%

Poverty rate

0.3%

Unemployment

2,044

Housing units

27.1%

Bachelor's or higher

Age distribution

Male Female

193

Under 5

194

257

5–9

259

185

10–14

186

343

15–19

346

197

20–24

199

401

25–34

403

218

35–44

219

293

45–54

295

195

55–59

196

241

60–64

243

315

65–74

317

183

75–84

184

85+

← Male

Female →

Age summary

Group	Count	%
Under 18	1,476	23.7%
18 and over	4,744	76.3%
65 and over	1,157	18.6%
Median age	33.9 years

Race & ethnicity

White 88.5%

Hispanic or Latino 4.7%

Other race 3.1%

Two or more races 2.2%

Black or African American 1%

Asian 0.3%

American Indian / Alaska Native 0.2%

Group	Count	%
White	5,775	88.5%
Hispanic or Latino	307	4.7%
Other race	200	3.1%
Two or more races	141	2.2%
Black or African American	67	1%
Asian	21	0.3%
American Indian / Alaska Native	16	0.2%

Household income

Under $10k 6.0%

$10k–$15k 2.6%

$15k–$25k 8.7%

$25k–$35k 8.6%

$35k–$50k 7.1%

$50k–$75k 21.5%

$75k–$100k 17.5%

$100k–$150k 17.4%

$150k–$200k 3.7%

$200k+ 6.7%

Range	% of households
Under $10k	6.0%
$10k–$15k	2.6%
$15k–$25k	8.7%
$25k–$35k	8.6%
$35k–$50k	7.1%
$50k–$75k	21.5%
$75k–$100k	17.5%
$100k–$150k	17.4%
$150k–$200k	3.7%
$200k+	6.7%
Median income	$68,063

Housing

Home values

Under $50k 6.5%

$50k–$100k 14.2%

$100k–$150k 22.2%

$150k–$200k 18.2%

$200k–$300k 23.6%

$300k–$500k 12.8%

$500k–$1M 2.5%

Housing overview

Metric	Value
Median home value	$167,400
Median rent / month	$740
Owner occupied	68.2%
Renter occupied	31.8%
Vacant	12.2%
Single-family detached	78.2%
Large apartment buildings	1.1%
Mobile homes	6.8%
Median rooms	6.1
Avg household size (owned)	2.56

Year built

Era	%
2020 or later	0.0%
2010–2019	1.8%
2000–2009	3.9%
1990–1999	12.6%
1980–1989	6.0%
1970–1979	23.6%
1960–1969	20.9%
1950–1959	11.7%
1940–1949	7.4%
1939 or earlier	12.2%

Bedrooms

Size	% of units
No bedroom (studio)	2.5%
1 bedroom	4.0%
2 bedrooms	32.5%
3 bedrooms	26.1%
4 bedrooms	21.5%
5+ bedrooms	13.4%

Vehicles per household

Vehicles	% of households
No vehicle	3.1%
1 vehicle	26.2%
2 vehicles	44.7%
3 or more	26.0%

Heating fuel

Fuel type	%
Utility gas	78.3%
Electricity	19.2%
Propane / LP gas	1.7%

Households & families

Household type	Count	%
Married-couple family	1,289	51.7%
Cohabiting couple	82	3.3%
Male householder, no spouse	622	25.0%
Female householder, no spouse	498	20.0%
Households with children under 18	620	24.9%
Households with seniors (65+)	789	31.7%
Average household size	2.32

Marital status

Status	Male	Female
Never married	38.6%	27.5%
Married	48.9%	59.5%
Separated	0.7%	0.3%
Widowed	3.1%	6.8%
Divorced	8.8%	6.0%

Education

Less than 9th grade 2.3%

Some HS, no diploma 4.3%

HS graduate 22.8%

Some college, no degree 29.6%

Associate's degree 13.9%

Bachelor's degree 16.4%

Graduate / professional 10.7%

Metric	%
HS diploma or higher	93.4%
Bachelor's or higher	27.1%

School enrollment (ages 3–17)

Type	Count	%
Nursery / preschool	130	7.0%
Kindergarten	105	5.6%
Elementary school	648	34.9%
High school	283	15.2%
College / grad school	693	37.3%

Employment

Industry of employment

Education & healthcare 28.0%

Retail trade 16.8%

Other services 9.1%

Arts, food & hospitality 6.1%

Transportation & utilities 5.9%

Professional & management 5.9%

Agriculture & mining 5.5%

Information 5.5%

Finance & real estate 5.4%

Construction 3.8%

Manufacturing 2.8%

Public administration 2.7%

Wholesale trade 2.4%

Occupation

Category	%
Management, business & arts	32.5%
Service	16.6%
Sales & office	28.7%
Natural resources & construction	9.7%
Production & transportation	12.5%

Employment type

Type	%
Private sector	79.3%
Government	14.0%
Self-employed	6.3%
Unpaid family workers	0.5%

Commute

Method	%
Drive alone	85.7%
Carpool	5.6%
Public transit	0.0%
Walk	2.2%
Other means	0.2%
Avg commute (minutes)	10.5

Poverty

All people 7.1%

Under 18 years 5.8%

18 and over 7.5%

Married-couple families 0.4%

Female-led households 38.9%

Income support

Source	% of households
Social Security	33.7%
Retirement income	23.1%
Supplemental Security	2.9%
Cash public assistance	0.9%
Food stamps / SNAP	2.8%

Health indicators

Condition	%
High blood pressure	32.2%
High cholesterol	32.1%
Heart disease	6.8%
Stroke	3.0%
Asthma	9.8%
Arthritis	24.2%
Kidney disease	3.0%
Pulmonary disease	6.9%
Cancer	6.7%

Behavior / access	%
Binge drinking	18.4%
No physical activity	23.8%
Less than 7 hrs sleep	30.2%
Fair or poor health	13.9%
Poor mental health	14.9%
Poor physical health	10.2%
No health insurance	14.1%
Visited doctor (checkup)	72.8%
Visited dentist	64.1%
Cholesterol screening	85.9%
Teeth loss	15.0%

Veterans & disability

Veterans	Count	%
Civilian veterans	302	6.4%

Disability	%
Any disability	16.1%
Under 18	9.1%
18–64 years	14.3%
65 and over	31.5%

Health insurance coverage

Type	%
Private insurance	77.2%
Public insurance	27.4%
Uninsured under 19	15.2%

Language & origin

Language spoken at home (age 5+)

Language	Count	%
English only	5,833	93.8%
Spanish	137	2.3%
Other Indo-European	112	1.9%
Asian & Pacific Islander	4	0.1%
Other languages	21	0.4%

Place of birth & citizenship

Origin	Count	%
Native born (US)	5,896	94.8%
Born in same state	5,896	94.8%
Born in different state	4,093	65.8%
Foreign born	0	0.0%
Naturalized citizen	324	5.2%
Not a US citizen	51	15.7%

Ancestry

Ancestry	Count	%
Italian	652	10.5%
French	652	10.5%
Arab	163	2.6%
Irish	141	2.3%

Ancestry	Count	%
English	78	1.3%
Polish	54	0.9%
Dutch	14	0.2%
German	7	0.1%

Technology access

Metric	% of households
Computer access	40.0%
Internet access	94.1%

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

Frequently asked questions

What ZIP codes does Colby, KS have?

Colby, KS has one ZIP code: 67701. Each ZIP code serves a distinct delivery area within the city and surrounding region.