Real Estate Data API

51040 Onawa

21 active listings out of 1.8K total properties we track in ZIP 51040 (Onawa, IA) — listings, off-market homes, rentals, and full sales/tax history. Refreshed nightly.

Get this data → API docs
Active
21
Median
$252K
±0%
Sales (12mo)
51
Tracked
1.8K
Zoomed out

While you're here, take in the bigger picture — maps below show Iowa (statewide), not just 51040. Same company, same dataset, different resolution.

Get this data →
Key Numbers
Tracked
1.8K
Active
21
Median list
$252K
Sales (12mo)
51
Get this data →
Key Numbers
Tracked
1.8K
Active
21
Median list
$252K
Sales (12mo)
51
Get this data →
Key Numbers
Tracked
1.8K
Active
21
Median list
$252K
Sales (12mo)
51
Get this data →
Key Numbers
Tracked
1.8K
Active
21
Median list
$252K
Sales (12mo)
51
Get this data →
Key Numbers
Tracked
1.8K
Active
21
Median list
$252K
Sales (12mo)
51

Inventory breakdown

Distribution of the 21 currently-active listings in ZIP 51040. Full dataset covers 1.8K properties — listings, off-market homes, rentals, and full history.

Active by price range
Under $300K 14 (70%)
$300K–$500K 5 (25%)
$500K–$750K 1 (5%)
$750K–$1M 0 (0%)
$1M–$2M 0 (0%)
$2M+ 0 (0%)
Active by bedroom count
Studio/1 bd 0
2 bd 2
3 bd 10
4 bd 8
5+ bd 1
Active by property type
Single Family 21 (100%)
For Developers

Get Onawa 51040 data in your app

curl
request 
GET https://api.straply.com/v1/markets/zip/51040
Authorization: Bearer $STRAPLY_KEY
200 OK response 
{
  "zip": "51040",
  "total_tracked": 1796,
  "active": 21,
  "median_list": 252400
}
Get an API key Read the docs

ZIP 51040 · Onawa, IA real estate: market summary

As of June 2026, Straply tracks 1,796 homes in ZIP 51040 (Onawa, IA), with 21 active for sale at a median list price of $252,400 (~$139/sq ft). Notably, it has notably historic housing — 46% of homes predate 1940.

Median list price
$252,400
Median $/sq ft
$139
Active listings
21
Properties tracked
1,796

Frequently asked: ZIP 51040 · Onawa, IA real estate

What is the median home price in ZIP 51040?

The median list price in ZIP 51040 (Onawa, IA) is $252,400 (about $139 per square foot), based on 21 active listings tracked by Straply as of June 2026.

What price range are homes in ZIP 51040?

Active listings in ZIP 51040 (Onawa, IA) concentrate in: 70% under $300k and 25% $300k–$500k.

How many homes are for sale in ZIP 51040?

Straply is tracking 21 active listings in ZIP 51040 (Onawa, IA) out of 1,796 properties on record as of June 2026.

How old are the homes in ZIP 51040?

Most homes in ZIP 51040 (Onawa, IA) were built in the 1920s. About 22% were built after 1980, while 46% predate 1940. The newest tracked home dates to 2025.

What types of homes are in ZIP 51040?

ZIP 51040 (Onawa, IA) is mostly single-family homes (100% of listings).

How many bedrooms do homes in ZIP 51040 typically have?

The most common size in ZIP 51040 (Onawa, IA) is 3 bd.

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