Real Estate Data API

51104 Sioux City

135 active listings out of 7.9K total properties we track in ZIP 51104 (Sioux City, IA) — listings, off-market homes, rentals, and full sales/tax history. Refreshed nightly.

Get this data → API docs
Active
135
Median
$273K
±0%
Sales (12mo)
267
Tracked
7.9K
Zoomed out

While you're here, take in the bigger picture — maps below show Iowa (statewide), not just 51104. Same company, same dataset, different resolution.

Get this data →
Key Numbers
Tracked
7.9K
Active
135
Median list
$273K
Sales (12mo)
267
Get this data →
Key Numbers
Tracked
7.9K
Active
135
Median list
$273K
Sales (12mo)
267
Get this data →
Key Numbers
Tracked
7.9K
Active
135
Median list
$273K
Sales (12mo)
267
Get this data →
Key Numbers
Tracked
7.9K
Active
135
Median list
$273K
Sales (12mo)
267
Get this data →
Key Numbers
Tracked
7.9K
Active
135
Median list
$273K
Sales (12mo)
267

Inventory breakdown

Distribution of the 135 currently-active listings in ZIP 51104. Full dataset covers 7.9K properties — listings, off-market homes, rentals, and full history.

Active by price range
Under $300K 78 (59.1%)
$300K–$500K 39 (29.5%)
$500K–$750K 9 (6.8%)
$750K–$1M 3 (2.3%)
$1M–$2M 2 (1.5%)
$2M+ 1 (0.8%)
Active by bedroom count
Studio/1 bd 2
2 bd 26
3 bd 48
4 bd 34
5+ bd 24
Active by property type
Single Family 110 (81.5%)
Townhouse 11 (8.1%)
Multi Family 11 (8.1%)
Condo 3 (2.2%)
For Developers

Get Sioux City 51104 data in your app

curl
request 
GET https://api.straply.com/v1/markets/zip/51104
Authorization: Bearer $STRAPLY_KEY
200 OK response 
{
  "zip": "51104",
  "total_tracked": 7929,
  "active": 135,
  "median_list": 272500
}
Get an API key Read the docs

ZIP 51104 · Sioux City, IA real estate: market summary

As of June 2026, Straply tracks 7,929 homes in ZIP 51104 (Sioux City, IA), with 135 active for sale at a median list price of $272,500 (~$127/sq ft). Notably, it has notably historic housing — 40% of homes predate 1940.

Median list price
$272,500
Median $/sq ft
$127
Active listings
135
Properties tracked
7,929

Frequently asked: ZIP 51104 · Sioux City, IA real estate

What is the median home price in ZIP 51104?

The median list price in ZIP 51104 (Sioux City, IA) is $272,500 (about $127 per square foot), based on 135 active listings tracked by Straply as of June 2026.

What price range are homes in ZIP 51104?

Active listings in ZIP 51104 (Sioux City, IA) concentrate in: 59% under $300k and 30% $300k–$500k.

How many homes are for sale in ZIP 51104?

Straply is tracking 135 active listings in ZIP 51104 (Sioux City, IA) out of 7,929 properties on record as of June 2026.

How old are the homes in ZIP 51104?

Most homes in ZIP 51104 (Sioux City, IA) were built in the 1920s. About 16% were built after 1980, while 40% predate 1940. The newest tracked home dates to 2025.

What types of homes are in ZIP 51104?

ZIP 51104 (Sioux City, IA) is mostly single-family homes (82% of listings). Also common: townhouses 8%, multi-family homes 8%.

How many bedrooms do homes in ZIP 51104 typically have?

The most common size in ZIP 51104 (Sioux City, IA) is 3 bd.

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