| City: | Great Falls, Montana |
| County: | Cascade County |
| Timezone: | Mountain (GMT -07:00) |
| Local Time: | 9:57:49 PM |
| Population: | No Population Data |
| Area Code: | 406 |
| Classification: | PO Box |
| Coordinates: | 47.5001, -111.3003 |
| Quick Link: |
ZIP code 59406 serves as a PO Box facility for Great Falls, Montana's business district and downtown residents. The post office maintains 360 PO Boxes alongside limited street delivery on S 9th Avenue, where 80 delivery points include multi-unit addresses. This isn't a separate community—it's a postal designation within Cascade County's largest city.
The facility serves 195 businesses that prefer PO Box addresses for mail consolidation and security. With 12 business establishments employing 125 workers tracked in the ZIP's small geographic footprint, the PO Box system supports downtown Great Falls commerce. Residents in the surrounding area receive street delivery through the neighboring 59405 ZIP code, which provides full carrier route service for the broader Great Falls metropolitan area.
S 9th Avenue contains the only street delivery points in this ZIP, with 80 records serving multi-unit addresses in Great Falls' urban core.
ZIP Code 59406 supports both business and residential activity. According to the Business Census (2024), there are 12 business establishments, employing about 125 people with an annual payroll of $7,581,000.
| # Residential Mailboxes: | 0Source: USPS |
| # Business Mailboxes: | 0Source: USPS |
| Total Delivery Receptacles: | 5,329Source: USPS |
| Single Family Delivery Units: | 0Source: USPS |
| Multi Family Delivery Units: | 0Source: USPS |
| # of Businesses: | 12Source: CBP |
| 1st Quarter Payroll: | $1,550,000Source: CBP |
| Annual Payroll: | $7,581,000Source: CBP |
| # of Employees: | 125Source: CBP |
ZIP Code 59406 is located in Cascade County, Montana, within the Great Falls, MT Metropolitan Statistical Area (CBSA 24500) and Montana's 2nd Congressional District. This Metro area has a population of 84,601 people, about 0.00% of whom live in ZIP Code 59406. It covers 0 sq mi of land and a water area of 0 sq mi.
| CBSA Name: | Great Falls, MTSource: Census |
| CBSA Number: | 24500Source: Census |
| CBSA Type: | MetroSource: Census |
| CBSA Division: | --Source: Census |
| CBSA Population: | 84,601Source: Census |
| MSA: | Great Falls, MT MSASource: Census |
| Land Area: | --Source: Census |
| Water Area: | --Source: Census |
| Congressional District: | 02Source: USPS |
| Congressional Land Area: | 0 sq miSource: Census |
| PMSA: | --Source: Census |
| Intro Date: | < 2004-10Source: ZIP-Codes.com |
| Place FIPS Code: | 3032800Source: Census |
| Place Name: | Great Falls city; MontanaSource: Census |
We could not locate which school district 59406 belongs to, but we will update this once new district data is released. There are no public schools nor private schools with a mailing address in this ZIP Code. Listing Nearby schools instead. It also has 6 colleges, universities or post secondary education institutions nearby which would be a short commute to.
Our sources include trusted federal and licensed data from the United States Postal Service, U.S. Census Bureau, U.S. Geological Survey, Centers for Medicare & Medicaid Services, and the National Center for Education Statistics, along with proprietary datasets created by ZIP-Codes.com. Data last updated on January 1, 2026.