Colby, KS

Single-footprint Census roll-up for Colby, KS: 1 USPS ZIP, population 6,502. Open the primary ZIP for household income, housing tenure, and commute from ACS 2023 5-Year Estimates.

Source:

ACS city ledger plate

Sheet COLBY-KS · Colby, KS 1 ZIPs · 6,502 pop · #13156/25278 · Thomas County

INC-MID · RANK-MID · ABOVE-PEER · BOOK-ONE · OWN-MID · POP-TOWN · SPREAD-UNK · HOME-LOW

  • INC-MID $70,250
  • RANK-MID #13156/25278
  • ABOVE-PEER over Brewster
  • BOOK-ONE 1 ZIP
  • OWN-MID 72% owners
  • POP-TOWN 6,502
  • SPREAD-UNK Single-ZIP book
  • HOME-LOW $177,300

Nearest income peer: Brewster, KS ( $5,312 income $)

Instrument codes from this city’s ACS household income, national rank, county-peer gap, ZIP book, owner tenure, population scale, intra-city income spread, and home-value band, not a moving recommendation.

Income neighbourhood around Colby

Lowest/highest poles plus county-sharing cities nearest Colby on average ZIP median household income. Full ladder: /cities.

median HH income

What this shows County-sharing peers only, not the full US city board. Open a near peer when the gap is small; open the poles when the mosaic is wide.

Source U.S. Census Bureau · ACS 5-Year Estimates As of 2026-08-06

National city placement

According to ACS 5-Year Estimates, Colby, KS sits among US cities with a below-median household income, on a town-scale population base, across a single-ZIP footprint.

48th pct
household income vs 25,278 US cities
6,502
city population (Census)
1
USPS ZIP codes covered
$70,250
avg ZIP median income

Income percentile ranks this city's average ZIP median household income against 25,278 US cities with ACS income on at least one ZIP. Scale and ZIP-spread words come from Census population and USPS ZIP coverage.

Below-median income with few delivery areas (1): read cost-of-living from the primary ZIP. Household income $70,250 and poverty 7.0% concentrate in 67701.

Owner-occupancy sits in a mixed band (71.7%) - check the ZIP page's tenure split before treating Colby as a pure owner town.

Within Kansas, Esbon is the closest lower-income city and Clay Center the closest higher-income city by average ZIP household income. Their 1 and 1 ZIP footprints are the immediate statewide comparison set for Colby.

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ZIP Codes in Colby, KS

These ZIP codes sit in Thomas County, which covers 5 ZIP codes in all; 1 of them fall in Colby. See the Thomas County roll-up →

No other city sharing Thomas County reports a higher average ZIP median income than Colby. Brewster, Rexford and Levant sit below it, so a household comparing this county on income alone starts here. Levant marks the far end of that range at $56,910, 19% below Colby.

ZIP Code Population Density Timezone
67701 6,502 5 America/Chicago

On a short ZIP footprint the city roll-up and the primary ZIP nearly coincide. Start at the Census ACS tables for Colby, then BLS wages if you need the labor-market side of the same small geography.

Source: U.S. Census Bureau, American Community Survey (ACS) 5-Year Estimates (2023). Verify with Census Bureau →

Source: HUD USPS Crosswalk (ZIP-to-county mapping) and Source: simplemaps.com (ZIP coordinates & timezones). Verify with HUD →

PlainZIP is not affiliated with the U.S. Census Bureau or any government agency.

Disclaimer: This information is provided for informational purposes only and does not constitute professional advice. Data is sourced from the U.S. Census Bureau American Community Survey (ACS). Consult a qualified professional before making decisions based on this data.