Real Estate Data API

63121 Saint Louis

215 active listings out of 10K total properties we track in ZIP 63121 (Saint Louis, MO) — listings, off-market homes, rentals, and full sales/tax history. Refreshed nightly.

Get this data → API docs
Active
215
Median
$105K
±0%
Sales (12mo)
362
Tracked
10K
Zoomed out

While you're here, take in the bigger picture — maps below show Missouri (statewide), not just 63121. Same company, same dataset, different resolution.

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Key Numbers
Tracked
10K
Active
215
Median list
$105K
Sales (12mo)
362
Get this data →
Key Numbers
Tracked
10K
Active
215
Median list
$105K
Sales (12mo)
362
Get this data →
Key Numbers
Tracked
10K
Active
215
Median list
$105K
Sales (12mo)
362
Get this data →
Key Numbers
Tracked
10K
Active
215
Median list
$105K
Sales (12mo)
362
Get this data →
Key Numbers
Tracked
10K
Active
215
Median list
$105K
Sales (12mo)
362

Inventory breakdown

Distribution of the 215 currently-active listings in ZIP 63121. Full dataset covers 10K properties — listings, off-market homes, rentals, and full history.

Active by price range
Under $300K 190 (94.1%)
$300K–$500K 10 (5%)
$500K–$750K 0 (0%)
$750K–$1M 0 (0%)
$1M–$2M 0 (0%)
$2M+ 2 (1%)
Active by bedroom count
Studio/1 bd 9
2 bd 82
3 bd 92
4 bd 27
5+ bd 3
Active by property type
Single Family 206 (95.8%)
Multi Family 6 (2.8%)
Lot 2 (0.9%)
Apartment 1 (0.5%)
For Developers

Get Saint Louis 63121 data in your app

curl
request 
GET https://api.straply.com/v1/markets/zip/63121
Authorization: Bearer $STRAPLY_KEY
200 OK response 
{
  "zip": "63121",
  "total_tracked": 10371,
  "active": 215,
  "median_list": 104900
}
Get an API key Read the docs

ZIP 63121 · Saint Louis, MO real estate: market summary

As of June 2026, Straply tracks 10,371 homes in ZIP 63121 (Saint Louis, MO), with 215 active for sale at a median list price of $104,900 (~$99/sq ft). Notably, it has notably historic housing — 42% of homes predate 1940.

Median list price
$104,900
Median $/sq ft
$99
Active listings
215
Properties tracked
10,371

Frequently asked: ZIP 63121 · Saint Louis, MO real estate

What is the median home price in ZIP 63121?

The median list price in ZIP 63121 (Saint Louis, MO) is $104,900 (about $99 per square foot), based on 215 active listings tracked by Straply as of June 2026.

What price range are homes in ZIP 63121?

Active listings in ZIP 63121 (Saint Louis, MO) concentrate in: 94% under $300k and 5% $300k–$500k.

How many homes are for sale in ZIP 63121?

Straply is tracking 215 active listings in ZIP 63121 (Saint Louis, MO) out of 10,371 properties on record as of June 2026.

How old are the homes in ZIP 63121?

Most homes in ZIP 63121 (Saint Louis, MO) were built in the 1950s. About 3% were built after 1980, while 42% predate 1940. The newest tracked home dates to 2024.

What types of homes are in ZIP 63121?

ZIP 63121 (Saint Louis, MO) is mostly single-family homes (96% of listings).

How many bedrooms do homes in ZIP 63121 typically have?

The most common size in ZIP 63121 (Saint Louis, MO) is 3 bd.

Data as of June 2026. Source: Straply. For address-level history and programmatic access, use the Straply API.