Boulder County, CO Property Data & Market Intelligence
Lotvox maintains county-records property data for Boulder County, Colorado — structural details, assessed and market values, and comparable-sales context, sourced from county assessor (CAMA) records. Verified Coverage is a county-scoped data-coverage claim: it means Lotvox has assessor structural data for properties across the named county, not a guarantee for any individual record.
Look up any address in the county for property details, valuation context, and comparables, or explore market conditions on the national map.
This market today
Source: Lotvox county market summary (Redfin county series · Zillow ZHVI / ZORI county series · ACS income), one resolver for every surface. Payment burden: monthly P&I on the median sale price (20% down, 30yr @ 6.66% as-of 2026-08-27) ÷ ACS 2023 median household income / 12. Generated 2026-08-30.
The Sink — Boulder County, CO
Faucet, basin and drain, after Jason Hartman’s metaphor.as of May 31, 2026
- Faucet — new listings
- 591/mo
- 81% of normal (734) · trickle
- Basin — active listings
- 1,515
- 127% of normal (1,192) · low
- Months of supply
- 3.5 mo
- balanced band 4–6
- Drain — closed sales
- 437/mo
- 80% of normal (546)
- Net — faucet minus drain
- +154/mo
- filling
- Reading
- current
- as of 2026-05-31
How plugged is the drain? Two definitions, both ours, deliberately not reconciled.
- 37%Absorption vs its own normal— 1 - (closed sales / active listings) / same-month median of that ratio
- 20%Closed sales vs its own normal— 1 - closed sales per month / same-month median closed sales per month
- Hartman, 2026-06-27“faucet at a trickle, basin about half of the normal level, drain about 30% plugged”— his own feed; he states no formula for the percentages
- Hartman, 2026-09-03“drain about 35 to 40% clogged, basin about 65% full”— Thoughtful Money - MIXED SPEAKER transcript, analogy only, not attribution
Closed sales over 24 months — two different numbers, deliberately not merged.
- 39/mofall in the monthly rate (8%)— peak 476/mo (2025-06-30) to 437/mo now
- 2,021transactions that did not happen— summed monthly shortfall vs the same-month normal, over 22 months below it (vs 2015-19 (COVID excluded))
- rate_drop_from_peak is a change in the monthly rate; cumulative_shortfall_vs_normal counts transactions not transacted. They are different quantities and are not interchangeable.
Redfin market data (county + ZIP), via Lotvox. As of 2026-05-31. Normal = same-month median of monthly rates, minimum 3 same-month points. A fresher supply-only read (540 new, 1,418 active, 2026-06-01, Realtor.com inventory (county + ZIP), via Lotvox) is available but is NOT used in the net — that source publishes no closed sales, so subtracting across it would mix two vintages.
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free · county-record data · links back hereCovered ZIP codes
Linked ZIPs open their Boulder Metro market page; the rest are covered by county records with their market page pending.