66427 ZIP Code, Frankfort, KS

66427 is a ZIP code in Frankfort, Kansas — mostly in Marshall County (90% of its land), with smaller parts in Pottawatomie County. It covers 211 square miles of land. The closest ZIP codes are 66544, 66411 and 66438. 1,334 people live here in 556 households. It is rural, with fewer than 100 people per square mile, and most homes are owner-occupied (84%). Median household income is $79,481, close to the Kansas median of $74,275; the median age is 45.1, older than most ZIP codes.

Quick facts

Key figures

MeasureValue
Residents1,334
Households556
Median household income$79,481
Income per person$38,217
Median age45.1
Homeowners83.8%
Median home value$133,600
Median rent$748
Bachelor's degree or higher23.9%
Average commute (minutes)19.9
Households with kids under 1824.3%
Moved in the past year9.4%
Below the poverty line11.7%
Broadband internet92.8%
Speak a non-English language at home1.3%

Household income

% of householdsValue
<$10K1.6%
$10–15K4.5%
$15–25K6.3%
$25–35K3.1%
$35–50K10.1%
$50–75K16.2%
$75–100K18.7%
$100–150K31.3%
$150–200K5.9%
$200K+2.3%

Age

% of all residentsValue
<1011.1%
10–1913.8%
20–243.2%
25–349.9%
35–4411.7%
45–5413.7%
55–6412.5%
65–7412.4%
75+11.7%

Tenure

% of housing unitsValue
Owned, with mortgage22.3%
Owned outright52.0%
Rented14.4%
Vacant11.3%

Type of building

% of housing unitsValue
Detached house89.5%
Townhome0.3%
2–4 units1.3%
5–19 units1.9%
20+ units0.0%
Mobile / other7.0%

Businesses in 66427

44 business establishments with 337 employees (ZIP Codes Business Patterns 2023).

EDDM carrier routes

See every USPS carrier route in 66427 with residential and business mailbox counts on the route map. Open the EDDM route map.

Nearby ZIP codes

Areas that include 66427

Mail every home in 66427

Route counts on this page price as Full Service 6.5 × 9 postcards: we print, bundle by carrier route and hand the mailing to USPS. Prefer to take it to the Post Office yourself? Print only costs less and you pay postage at drop-off.

EDDM guides

ZIP code statistics describe the Census ZIP Code Tabulation Area (ZCTA) 66427, which approximates the USPS ZIP code area. Census figures: American Community Survey 5-year estimates, 2020–2024.

Frequently asked questions

What city is 66427 in?
66427 is a Frankfort, KS mailing address. None of its land lies inside a Census-defined city or community.
What county is 66427 in?
66427 is mostly in Marshall County (90% of its land), with smaller parts in Pottawatomie County.
What is the population of 66427?
About 1,334 people (±151), according to the Census Bureau's American Community Survey 5-year estimates for 2020–2024. The 2020 Census counted 1,328.
What is the median household income in 66427?
$79,481 (±$10,837), compared with $74,275 for Kansas as a whole. Half the households in the ZIP code earn more and half earn less.
How many carrier routes and mailboxes are in 66427?
EDDM2GO's stored route library does not include 66427 yet. The EDDM route map loads its carrier routes and mailbox counts when you search the ZIP code.
What ZIP codes are near 66427?
The closest, measured center to center: 66544 (9 mi, Vermillion), 66411 (11 mi, Blue Rapids), 66438 (12.6 mi, Home), 66406 (16.1 mi, Beattie), 66415 (16.1 mi, Centralia) and 66549 (16.6 mi, Westmoreland).

This product uses the Census Bureau Data API but is not endorsed or certified by the Census Bureau.