Declo city, Idaho
Official LSAD Designation: Declo city • Census GEOID: 1620980
• Cassia County
Declo city is an incorporated city in Cassia County, Idaho. According to official records from the Census (2025), Declo city had an estimated population of 372 residents. Official Census Bureau geographic records classify this community under LSAD designation Declo city (GEOID 1620980).
Local Government Administration U.S. Census Bureau GMAF
City Of Declo
Municipal
Official Title:
City Clerk
Address:
PO BOX 159, DECLO ID 83323-0159
County Of Cassia
County
Official Title:
Administrative Assistant
Address:
1459 OVERLAND AVE, BURLEY ID 83318-1862
Civic & Statistical Snapshot
| Category | Estimate | Survey Period / Source |
|---|---|---|
| Total Population | 372 | 2025 |
| Median Household Income | $46,782 | 2020-2024 |
| Median Home Value | $235,700 | 2020-2024 |
| Land Area | 0.28 sq mi | Gazetteer (2026) |
| Civic & Public Services | Hospitals, Libraries, Colleges | CMS / IMLS / IPEDS |
| Schools & Districts | NCES Directory Listings | Provided by k12guides.com |
| Nearby Airports | Landing Facilities | Provided by airport-data.com |
| Climate & Weather | NOAA 30-Year Normals | 1991–2020 |
Source: U.S. Census Bureau (PEP, ACS 5-Year).