🇺🇸 United States ZIP Code

STANDARD

66861

Marion

ZIP Code 66861 is a standard zip code serving Marion, Marion, Kansas (KS), in Marion County, United States. It has an estimated population of 3,204 with a median household income of $44,194. The area falls within the America/Chicago timezone.

Median Household Income vs. National Average

Location

Country: 🇺🇸 United States
State / Province: Kansas (KS)
County: Marion
City: Marion
Timezone: America/Chicago

Coordinates

Latitude: 38.355400
Longitude: -97.020400

Geographic Details

Land Area: 207.46 mi²
Water Area: 6.37 mi²
Population Density: 15.0 people per mi² (15th percentile)
Bounding Box: 38.507656°N, 38.240167°S, -96.819475°E, -97.166516°W

With 3,204 residents spread across 207.46 square miles, this area has a population density of 15.0 people per square mile.

Demographics

3,204

Population

50th percentile

$44,194

Median Income

40th percentile

$87,200

Median Home Value

25th percentile

207.46 mi²

Land Area

The median household income in 66861 is $44,194, and the median home value is $87,200.

Housing

1,749

Total Units

1,382

Occupied Units

79.0%

Occupancy Rate

Similar ZIP Codes in Kansas

ZIP codes with similar median household income in Kansas.

67207

Wichita

$45,938

67439

Ellsworth

$48,393

66749

Iola

$39,719

66002

Atchison

$44,521

66755

Moran

$43,929

66771

Saint Paul

$48,260

67042

El Dorado

$48,590

67701

Colby

$47,292

Frequently Asked Questions

What information is available for each ZIP code?

Each ZIP code page shows city, state, county, geographic coordinates, timezone, population, median household income, median home value, housing units, land area, population density, commute time, educational attainment, area codes, and ZIP code type (Standard, PO Box, or Unique).

What are the different types of ZIP codes?

There are three types of ZIP codes: Standard (residential and commercial delivery areas), PO Box (assigned to post office box sections), and Unique (assigned to a single high-volume address like a government agency or large company). Standard ZIP codes are the most common.

How often is ZIP code data updated?

ZIP code assignments are updated quarterly by the USPS. Demographic data comes from the US Census Bureau's American Community Survey (ACS), which releases new 5-year estimates annually. ZipFYI updates its data to reflect the latest available information.

What is population density and why does it matter?

Population density measures the number of people per square mile in a ZIP code area. It helps identify urban vs. rural areas, affects real estate values, impacts service availability, and is used in market analysis. Dense urban ZIP codes may have 50,000+ people per square mile.

How are ZIP code boundaries determined?

ZIP code boundaries are determined by the USPS based on mail delivery routes, not political or geographic boundaries. They follow carrier routes and may cross city, county, or even state lines. Boundaries can change when the USPS reorganizes delivery operations.

What does median household income tell me about a ZIP code?

Median household income is the middle value when all household incomes in a ZIP code are sorted. Half of households earn more and half earn less. It is a better indicator of typical earnings than average income, which can be skewed by very high or very low outliers.