Top 10 ZIPs by size — 7.32% mortgage rate — Updated 10/27/2026
Faucet, basin and drain — new listings in, active inventory, closed sales out.as of Sep 30, 2026
How plugged is the drain? Two definitions, both ours, deliberately not reconciled.
Closed sales over 24 months — two different numbers, deliberately not merged.
Redfin market data (county + ZIP), via Lotvox. As of 2026-09-30. Normal = same-month median of monthly rates, minimum 3 same-month points. Source window 3 months (flows shown per month). Aggregated over a fixed panel of 202 zips — the panel is fixed so a change in who reports cannot look like a change in the market. months_of_supply is not published at this grain (0 non-null rows measured); derived here as active listings / closed sales per month.
Verified county coverage:Harris County, TXMontgomery County, TX
Monthly new for-sale listings · Redfin + Realtor.com · Houston, TX
as of Sep 1, 2026BALANCED — Houston roughly fair, negotiate on a per-ZIP basis
| ZIP | City | Score | Median Price | YoY | Burden | Buy/Rent | DOM | Supply | Gap % |
|---|---|---|---|---|---|---|---|---|---|
| 77433 | Cypress | 57 | $422,856 | -1.2% | 20.3% | Neutral | 56d | 4.8mo | -56.9% |
| 77449 | Katy | 70 | $264,942 | -2.8% | 20.3% | Buy | 45d | 4.5mo | -1.6% |
| 77429 | Cypress | 56 | $373,727 | -1.2% | 20.9% | Neutral | 45d | 4.4mo | +54.2% |
| 77493 | Katy | 52 | $335,766 | -3.9% | 19.5% | Buy | 68d | 5.8mo | -16.4% |
| 77084 | Houston | 66 | $261,493 | -2.8% | 22.6% | Buy | 45d | 4.8mo | +7.4% |
| 77379 | Spring | 66 | $360,401 | -0.3% | 21.5% | Neutral | 43d | 4.3mo | -14.8% |
| 77346 | Atascocita | 63 | $307,801 | -1.5% | 17.4% | Buy | 49d | 4.3mo | -23.7% |
| 77375 | Tomball | 66 | $355,110 | -0.8% | 24.4% | Neutral | 46d | 4.7mo | +9.9% |
| 77373 | Spring | 71 | $238,312 | -2.8% | 18.1% | Buy | 60d | 5mo | -4.3% |
| 77386 | Spring | 71 | $367,655 | -0.9% | 18.6% | Buy | 54d | 3.9mo | +4.7% |
Median price and 12-month change: Zillow Home Value Index (ZHVI); where a ZIP has no ZHVI value, the county assessor average. Days on market: Redfin Data Center, rolling 90 days; months of supply: Redfin Data Center. Rent: Zillow Observed Rent Index (ZORI); where a ZIP has no ZORI value, the Census ACS county rent.