ZIP Code 66840 has segments in 3 Counties (Butler, Chase, Marion).
The ZIP Code maps and database are updated 4 times per year.
Database updated: October 1, 2025, Maps updated: May 1, 2024.
POPULATION | |
|---|---|
| Total Population | 773 (100%) |
| Population in Households | 773 (100.0%) |
| Population in Families | 680 (88.0%) |
| Population in Group Quarters1 | 0 |
| Population Density | 4 |
| Diversity Index2 | 23 |
INCOME | |
| Median Household Income | $63,610 |
| Average Household Income | $78,654 |
| % of Income for Mortgage4 | 22% |
| Per Capita Income | $28,490 |
| Wealth Index5 | 62 |
| Socioeconomic Status Index6 | Moderate (48.3) |
HOUSING | |
|---|---|
| Total HU (Housing Units) | 331 (100%) |
| Owner Occupied HU | 238 (71.9%) |
| Renter Occupied HU | 42 (12.7%) |
| Vacant Housing Units | 51 (15.4%) |
| Median Home Value | $218,182 |
| Average Home Value | $238,508 |
| Housing Affordability Index3 | 94 |
HOUSEHOLDS | |
| Total Households | 280 |
| Average Household Size | 2.76 |
| Family Households | 210 |
| Average Family Size | 3.00 |
GROWTH RATE / YEAR |
2020-2025 | 2025-2030 |
|---|---|---|
| Population | 0.25% | -0.29% |
| Households | 0.34% | 0.00% |
| Families | -0.87% | |
| Median Household Income | 1.41% | |
| Per Capita Income | 2.29% | |
| Owner Occupied HU | -1.29% |
The table below compares 66840 to the other 701 ZIP Codes in Kansas by rank and percentile using July 1, 2025 data. The location Ranked # 1 has the highest value. A location that ranks higher than 75% of its peers would be in the 75th percentile of the peer group.
| Variable Description | Rank | Percentile |
|---|---|---|
| Total Population | # 372 | 47th |
| Population Density | # 545 | 23rd |
| Median Household Income | # 405 | 42nd |
| Housing Affordability Index | # 148 | 21st |
| Per Capita Income | # 594 | 15th |
| Diversity Index | # 421 | 40th |
Additional comparisons and rankings can be made with a VERY EASY TO USE Kansas Census Data Comparison Tool.