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Cheapest ZIPs in Boulder County, CO

No ZIP in Boulder County, COclears the HavenScore: 60 quality floor this month — in high-cost counties, low prices and strong scores rarely overlap. Below is the affordable end anyway: the county’s most affordable scored ZIPs, ranked by median home value with each ZIP’s score shown. Refreshed October 2026.

  1. 1
    80501
    Longmont, CO
    $482,052
    HavenScore: 46
  2. 2
    80510
    Allenspark, CO
    $498,899
    HavenScore: 56
  3. 3
    80481
    Ward, CO
    $521,667
    HavenScore: 41
  4. 4
    80455
    Jamestown, CO
    $539,624
    HavenScore: 56
  5. 5
    80026
    Lafayette, CO
    $666,329
    HavenScore: 49
  6. 6
    80466
    Nederland, CO
    $671,607
    HavenScore: 40
  7. 7
    80301
    Boulder, CO
    $700,614
    HavenScore: 45
  8. 8
    80503
    Longmont, CO
    $732,943
    HavenScore: 47
  9. 9
    80540
    Lyons, CO
    $747,522
    HavenScore: 48
  10. 10
    80303
    Boulder, CO
    $811,721
    HavenScore: 41

Boulder County against Colorado

The middle scored ZIP in each: 14 ZIPs in Boulder County, 416 in Colorado. HavenScore, scored October 1, 2026. Typical home value: Zillow, August 2026.

FigureBoulder CountyColorado
Typical home value, Zillow$717K$497K
HavenScore4645

Every scored ZIP in Boulder County, CO

All 14 scored ZIPs, A to Z by city. The list above ranks only the cheapest. HavenScore, scored October 1, 2026. Typical home value: Zillow, August 2026.

Each row: ZIP, city, HavenScore (0–100), typical home value (Zillow).

Cities in Boulder County

Related pages

Frequently asked questions

Why doesn't this list use the usual quality floor?
Cheapest-ZIPs lists normally include only ZIPs with HavenScore: 60 or above. No ZIP in Boulder County, CO clears that floor this month, so this page shows the county's most affordable scored ZIPs instead — with each ZIP's HavenScore shown, so the trade-off stays visible.
How is "most affordable" measured here?
ZIPs are ranked by median home value from lowest to highest across every scored ZIP in Boulder County, CO. Because no ZIP clears the quality floor this month, no score filter is applied to this list.
How often is this list updated?
This page refreshes monthly when our pipeline ingests new data from Zillow, Realtor, Redfin, and Census.