Real Estate Data API

54840 Grantsburg

32 active listings out of 2.8K total properties we track in ZIP 54840 (Grantsburg, WI) — listings, off-market homes, rentals, and full sales/tax history. Refreshed nightly.

Get this data → API docs
Active
32
Median
$299K
±0%
Sales (12mo)
87
Tracked
2.8K
Zoomed out

While you're here, take in the bigger picture — maps below show Wisconsin (statewide), not just 54840. Same company, same dataset, different resolution.

Get this data →
Key Numbers
Tracked
2.8K
Active
32
Median list
$299K
Sales (12mo)
87
Get this data →
Key Numbers
Tracked
2.8K
Active
32
Median list
$299K
Sales (12mo)
87
Get this data →
Key Numbers
Tracked
2.8K
Active
32
Median list
$299K
Sales (12mo)
87
Get this data →
Key Numbers
Tracked
2.8K
Active
32
Median list
$299K
Sales (12mo)
87
Get this data →
Key Numbers
Tracked
2.8K
Active
32
Median list
$299K
Sales (12mo)
87

Inventory breakdown

Distribution of the 32 currently-active listings in ZIP 54840. Full dataset covers 2.8K properties — listings, off-market homes, rentals, and full history.

Active by price range
Under $300K 15 (51.7%)
$300K–$500K 6 (20.7%)
$500K–$750K 3 (10.3%)
$750K–$1M 3 (10.3%)
$1M–$2M 2 (6.9%)
$2M+ 0 (0%)
Active by bedroom count
Studio/1 bd 4
2 bd 12
3 bd 9
4 bd 3
5+ bd 2
Active by property type
Single Family 28 (87.5%)
Multi Family 4 (12.5%)
For Developers

Get Grantsburg 54840 data in your app

curl
request 
GET https://api.straply.com/v1/markets/zip/54840
Authorization: Bearer $STRAPLY_KEY
200 OK response 
{
  "zip": "54840",
  "total_tracked": 2776,
  "active": 32,
  "median_list": 299000
}
Get an API key Read the docs

ZIP 54840 · Grantsburg, WI real estate: market summary

As of June 2026, Straply tracks 2,776 homes in ZIP 54840 (Grantsburg, WI), with 32 active for sale at a median list price of $299,000 (~$192/sq ft). Notably, most homes were built in the 2000s.

Median list price
$299,000
Median $/sq ft
$192
Active listings
32
Properties tracked
2,776

Frequently asked: ZIP 54840 · Grantsburg, WI real estate

What is the median home price in ZIP 54840?

The median list price in ZIP 54840 (Grantsburg, WI) is $299,000 (about $192 per square foot), based on 32 active listings tracked by Straply as of June 2026.

What price range are homes in ZIP 54840?

Active listings in ZIP 54840 (Grantsburg, WI) concentrate in: 52% under $300k and 21% $300k–$500k.

How many homes are for sale in ZIP 54840?

Straply is tracking 32 active listings in ZIP 54840 (Grantsburg, WI) out of 2,776 properties on record as of June 2026.

How old are the homes in ZIP 54840?

Most homes in ZIP 54840 (Grantsburg, WI) were built in the 2000s. About 51% were built after 1980, while 15% predate 1940. The newest tracked home dates to 2024.

What types of homes are in ZIP 54840?

ZIP 54840 (Grantsburg, WI) is mostly single-family homes (88% of listings). Also common: multi-family homes 12%.

How many bedrooms do homes in ZIP 54840 typically have?

The most common size in ZIP 54840 (Grantsburg, WI) is 2 bd.

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