Longmont, CO

Single-footprint Census roll-up for Longmont, CO: 3 USPS ZIPs, population 117,461. Open the primary ZIP for household income, housing tenure, and commute from ACS 2023 5-Year Estimates.

U.S. Census Bureau, SimpleMaps US ZIP Code Database, delivery-area ZIP coverage

ACS city ledger plate

Sheet LONGMONT-CO · Longmont, CO 3 ZIPs · 117,461 pop · #4033/25278 · Boulder County

INC-HIGH · RANK-TOP · PHOTO-FINISH · BOOK-FEW · OWN-MID · POP-MID · SPREAD-MOD · HOME-HIGH

  • INC-HIGH $102,725
  • RANK-TOP #4033/25278
  • PHOTO-FINISH ≈ Allenspark
  • BOOK-FEW 3 ZIPs
  • OWN-MID 68% owners
  • POP-MID 117,461
  • SPREAD-MOD 80501→80504
  • HOME-HIGH $612,000

Nearest income peer: Allenspark, CO ( $1,475 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 Longmont

Lowest/highest poles plus county-sharing cities nearest Longmont 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 2026-08-25

National city placement

According to ACS 5-Year Estimates, Longmont, CO sits among US cities with an upper-quartile household income, on a mid-size population base, across a handful of delivery areas.

Top 16%
household income vs 25,278 US cities
117,461
city population (Census)
3
USPS ZIP codes covered
$102,725
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.

High-income footprint on only 3 ZIPs: the city page and the ZIP page nearly coincide. Headline income $102,725 and home value $612,000 should be read as near-neighborhood numbers ; bachelor's attainment averages 48.3%.

Owner-occupancy sits in a mixed band (67.9%) - check the ZIP page's tenure split before treating Longmont as a pure owner town.

Within Colorado, Byers is the closest lower-income city and Avon the closest higher-income city by average ZIP household income. Their 1 and 1 ZIP footprints are the immediate statewide comparison set for Longmont.

Within-city ZIP comparison

Where the ZIP codes inside Longmont differ

Housing values create the stronger within-city contrast here. ZIP 80501 has a median home value of $488,800, compared with $755,500 in 80503. Use the city average for a broad profile, then compare these ZIP pages when a housing decision depends on the local market.

Income high-to-low ratio
1.4×

80501 to 80504

Home-value high-to-low ratio
1.5×

80501 to 80503

Poverty-rate spread
6.1 points

80504 to 80501

Derived from the published ACS 2023 ZIP-level records shown on this site. A high-to-low ratio compares the highest and lowest available ZIP values; it is not a score or forecast.

Population concentration

Longmont residents split across a short ZIP set

No ZIP owns Longmont: the largest, 80504, is only about 40% of 117,461 residents across 3 codes. Compare at least two ZIPs before treating the city roll-up as a neighborhood answer.

Census ZBP business roll-up

Employer-heavy short list in Longmont

Citywide ZBP: 3,914 establishments, 48,376 employees , annual payroll $3,147,599k (~33 establishments per 1,000 residents) across 3 of 3 ZIPs. Peak business ZIP 80501 (1,955 units) ; leading NAICS Professional, scientific, and technical services (596) · also Construction · Health care and social assistance .

View your shortlist →

ZIP Codes in Longmont, CO

These ZIP codes sit in Boulder County, which covers 19 ZIP codes in all; 3 of them fall in Longmont. See the Boulder County roll-up →

Longmont sits in the lower half of Boulder County on income: Louisville, Lafayette and Lyons report more, and only Boulder reports less. Jamestown marks the far end of that range at $169,286, 65% above Longmont.

Side-by-side: Compare 80504 vs 80501 →

ZIP Code Population Median income Establishments Density
80504 46,876 $113,643 1,192 183
80501 39,521 $80,911 1,955 1,233
80503 31,064 $113,620 767 132

Longmont roll-ups here are for informational purposes only and do not constitute financial or relocation advice. ACS and Census ZBP figures are estimates; confirm the current table against Census before a money or move decision involving Longmont, .