66554 ZIP Code — Randolph, KS

Riley County, Kansas

ZIP code 66554 is located in Randolph, Kansas, within Riley County. It covers approximately 100.88 square miles and serves a population of 650 residents. This is a standard ZIP code in the Central (CT) timezone, served by area code 785.

About ZIP code 66554

The housing stock consists of predominantly single-family detached homes. Most homes were built in the pre-1940, giving the area an established character. Median home value is $235,900. Owner-occupancy is high at 93%, well above the national average.

Median household income is $87,898. The poverty rate of 3% is below the national average. 42% of households receive Social Security income, suggesting a notable retiree or disability population.

The dominant occupation class is management, business, and professional, with education and healthcare as the leading industry. The average commute of 29 minutes is near the national average. Remote work is prevalent — 20% of workers work from home.

Educational attainment is high — 51% of residents hold a bachelor's degree or higher, well above the national average of 33%.

Overall, ZIP code 66554 reflects a community defined by a highly educated population, high homeownership, a high rate of remote workers, and a significant Social Security-dependent population.

650

population

100.88

sq mi land

Standard

ZIP type

Central (CT)

timezone

66554 ZIP code map

Cities in ZIP code 66554

Below are the cities the US Postal Service accepts for ZIP code 66554. Using any city not on this list may result in mail delivery delays.

City	Status
Randolph	Preferred

Nearby ZIP codes

66520 Olsburg (6.7 mi) 66449 Leonardville (7.9 mi) 67447 Green (13.4 mi) 66411 Blue Rapids (14.2 mi) 66933 Barnes (14.6 mi) 66548 Waterville (15.1 mi) 66503 Manhattan (16.1 mi) 66549 Westmoreland (17.3 mi) 66531 Riley (18.1 mi) 66943 Greenleaf (18.1 mi)

Demographics updated 05/2026

Population
Total population	650
Population density	6 / sq mi
State FIPS	20
County FIPS	161

Geography
Land area	100.88 sq mi
Water area	4.68 sq mi
Latitude	39.4716
Longitude	-96.7415
Timezone	Central (CT)
Area code	785

Total population by age

Gender

Race & ethnicity

Economics updated 05/2026

Household income

Income range	This ZIP	County avg	State avg
Under $50k	23.6%	45.7%	41.1%
$50k – $100k	42.9%	30.1%	32.2%
$100k – $200k	27.6%	19.4%	21.0%
Over $200k	5.9%	4.9%	5.7%

Demographics & statistics

650

Population

People per sq mi

54.6

Median age

$87,898

Median household income

$40,252

Per capita income

$235,900

Median home value

$1,115

Median monthly rent

92.9%

Home ownership

3.2%

Poverty rate

1.0%

Unemployment

248

Housing units

50.6%

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

109

75–84

85+

← Male

Female →

Age summary

Group	Count	%
Under 18	125	19.2%
18 and over	525	80.8%
65 and over	215	33.1%
Median age	54.6 years

Race & ethnicity

White 91%

Two or more races 5.8%

Hispanic or Latino 2.7%

Asian 0.4%

Group	Count	%
White	608	91%
Two or more races	39	5.8%
Hispanic or Latino	18	2.7%
Asian	3	0.4%

Household income

Income range	This ZIP	County avg	State avg
Under $50k	23.6%	45.7%	41.1%
$50k – $100k	42.9%	30.1%	32.2%
$100k – $200k	27.6%	19.4%	21.0%
Over $200k	5.9%	4.9%	5.7%

Under $10k 0.4%

$10k–$15k 3.1%

$15k–$25k 4.0%

$25k–$35k 2.2%

$35k–$50k 7.6%

$50k–$75k 29.3%

$75k–$100k 13.3%

$100k–$150k 24.9%

$150k–$200k 11.6%

$200k+ 3.6%

Range	% of households
Under $10k	0.4%
$10k–$15k	3.1%
$15k–$25k	4.0%
$25k–$35k	2.2%
$35k–$50k	7.6%
$50k–$75k	29.3%
$75k–$100k	13.3%
$100k–$150k	24.9%
$150k–$200k	11.6%
$200k+	3.6%
Median income	$87,898

Housing

Home values

Under $50k 7.7%

$50k–$100k 15.3%

$100k–$150k 13.4%

$150k–$200k 5.7%

$200k–$300k 35.4%

$300k–$500k 18.2%

$500k–$1M 4.3%

Housing overview

Metric	Value
Median home value	$235,900
Median rent / month	$1,115
Owner occupied	92.9%
Renter occupied	7.1%
Vacant	14.8%
Single-family detached	90.9%
Large apartment buildings	0.0%
Mobile homes	9.1%
Median rooms	6.3
Avg household size (owned)	3.03

Year built

Era	%
2020 or later	0.0%
2010–2019	6.1%
2000–2009	13.3%
1990–1999	12.5%
1980–1989	12.5%
1970–1979	8.7%
1960–1969	15.5%
1950–1959	4.2%
1940–1949	1.5%
1939 or earlier	25.8%

Bedrooms

Size	% of units
No bedroom (studio)	0.0%
1 bedroom	4.9%
2 bedrooms	21.6%
3 bedrooms	33.3%
4 bedrooms	39.0%
5+ bedrooms	1.1%

Vehicles per household

Vehicles	% of households
No vehicle	0.4%
1 vehicle	19.1%
2 vehicles	28.4%
3 or more	52.0%

Heating fuel

Fuel type	%
Utility gas	6.2%
Electricity	21.8%
Propane / LP gas	61.8%
Fuel oil	8.0%
Wood	2.2%

Households & families

Household type	Count	%
Married-couple family	163	72.4%
Cohabiting couple	1	0.4%
Male householder, no spouse	25	11.1%
Female householder, no spouse	36	16.0%
Households with children under 18	53	23.6%
Households with seniors (65+)	83	36.9%
Average household size	2.89

Marital status

Status	Male	Female
Never married	14.2%	8.6%
Married	81.4%	82.5%
Separated	0.0%	0.0%
Widowed	0.0%	5.5%
Divorced	4.4%	3.4%

Education

Less than 9th grade 0.0%

Some HS, no diploma 0.8%

HS graduate 23.1%

Some college, no degree 15.2%

Associate's degree 10.3%

Bachelor's degree 37.5%

Graduate / professional 13.0%

Metric	%
HS diploma or higher	99.2%
Bachelor's or higher	50.6%

School enrollment (ages 3–17)

Type	Count	%
Nursery / preschool	3	2.3%
Kindergarten	12	9.3%
Elementary school	85	65.9%
High school	14	10.9%
College / grad school	15	11.6%

Employment

Industry of employment

Education & healthcare 46.1%

Agriculture & mining 8.5%

Retail trade 8.5%

Finance & real estate 6.3%

Professional & management 6.3%

Other services 5.6%

Public administration 5.6%

Construction 4.9%

Transportation & utilities 3.2%

Wholesale trade 1.8%

Arts, food & hospitality 1.8%

Manufacturing 1.1%

Information 0.4%

Occupation

Category	%
Management, business & arts	49.3%
Service	16.2%
Sales & office	16.9%
Natural resources & construction	12.0%
Production & transportation	5.6%

Employment type

Type	%
Private sector	41.5%
Government	39.4%
Self-employed	19.0%
Unpaid family workers	0.0%

Commute

Method	%
Drive alone	67.7%
Carpool	11.0%
Public transit	0.0%
Walk	1.1%
Work from home	20.2%
Other means	0.0%
Avg commute (minutes)	29.4

Poverty

All people 3.2%

Under 18 years 4.8%

18 and over 2.9%

Married-couple families 1.8%

Female-led households 28.6%

Income support

Source	% of households
Social Security	41.8%
Retirement income	38.7%
Supplemental Security	1.8%
Cash public assistance	1.3%
Food stamps / SNAP	3.1%

Health indicators

Condition	%
Obesity	30.1%
High blood pressure	30.8%
High cholesterol	33.7%
Diabetes	9.3%
Heart disease	6.1%
Stroke	2.6%
Asthma	8.6%
Arthritis	24.0%
Kidney disease	2.6%
Pulmonary disease	5.4%
Cancer	7.5%

Behavior / access	%
Smoking	14.7%
Binge drinking	18.9%
No physical activity	18.1%
Less than 7 hrs sleep	28.2%
Depression	16.8%
Fair or poor health	10.4%
Poor mental health	12.1%
Poor physical health	8.3%
No health insurance	10.7%
Visited doctor (checkup)	75.5%
Visited dentist	74.9%
Cholesterol screening	91.4%
Teeth loss	8.8%

Veterans & disability

Veterans	Count	%
Civilian veterans	56	10.9%

Disability	%
Any disability	10.1%
Under 18	4.0%
18–64 years	5.6%
65 and over	20.0%

Health insurance coverage

Type	%
Private insurance	89.7%
Public insurance	38.1%
No insurance	3.0%
Uninsured under 19	0.0%

Language & origin

Language spoken at home (age 5+)

Language	Count	%
English only	634	97.5%
Spanish	3	0.5%
Other Indo-European	0	0.0%
Asian & Pacific Islander	0	0.0%
Other languages	3	0.5%

Place of birth & citizenship

Origin	Count	%
Native born (US)	635	97.7%
Born in same state	626	96.3%
Born in different state	413	63.5%
Foreign born	9	1.4%
Naturalized citizen	15	2.3%
Not a US citizen	15	100.0%

Ancestry

Ancestry	Count	%
French	117	18%
Italian	64	9.8%
Arab	27	4.2%

Ancestry	Count	%
Polish	8	1.2%
English	4	0.6%

Technology access

Metric	% of households
Computer access	34.6%
Internet access	97.8%

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

Frequently asked questions about ZIP code 66554

What city is ZIP code 66554 in?

ZIP code 66554 is primarily assigned to Randolph, Kansas.

What county is ZIP code 66554 in?

ZIP code 66554 falls within Riley County, Kansas.

Does ZIP code 66554 have an older population?

33% of residents in ZIP code 66554 are 65 or older, above the national average of ~17%.

Is ZIP code 66554 mostly owner-occupied?

93% of occupied units in ZIP code 66554 are owner-occupied, well above the national average.

How educated is the population of ZIP code 66554?

51% of residents hold a bachelor's degree or higher — well above the national average of ~33%, reflecting a highly educated population.

Does ZIP code 66554 have a large retiree population?

42% of households in ZIP code 66554 receive Social Security income, suggesting a significant retiree or disability population.

What timezone is ZIP code 66554 in?

ZIP code 66554 observes the CST timezone.