| City: | Idaho Falls, Idaho |
| County: | Bonneville County |
| Timezone: | Mountain (GMT -07:00) |
| Local Time: | 10:09:32 AM |
| Population: | No Population Data |
| Area Codes: | 208 / 986 |
| Classification: | PO Box |
| Coordinates: | 43.4667, -112.0335 |
| Quick Link: |
The post office supports 563 businesses despite the limited street infrastructure. This pattern is common in established towns where a downtown post office handles PO Box customers while carrier routes fan out from separate facilities. The single street listed (4th St) contains 95 delivery records, likely representing a commercial corridor where businesses maintain boxes for reliable package receipt and mail separation from residential delivery.
The single street listing (4th St) reflects a concentrated service area, typical of downtown business districts where PO boxes serve commercial customers who prefer centralized mail handling over on-premises delivery.
ZIP Code 83403 supports both business and residential activity. According to the Business Census (2024), there are 46 business establishments, employing about 612 people with an annual payroll of $36,491,000.
| # Residential Mailboxes: | 0Source: USPS |
| # Business Mailboxes: | 0Source: USPS |
| Total Delivery Receptacles: | 4,423Source: USPS |
| Single Family Delivery Units: | 0Source: USPS |
| Multi Family Delivery Units: | 0Source: USPS |
| # of Businesses: | 46Source: CBP |
| 1st Quarter Payroll: | $8,320,000Source: CBP |
| Annual Payroll: | $36,491,000Source: CBP |
| # of Employees: | 612Source: CBP |
ZIP Code 83403 is located in Bonneville County, Idaho, within the Idaho Falls, ID Metropolitan Statistical Area (CBSA 26820) and Idaho's 2nd Congressional District. This Metro area has a population of 130,374 people, about 0.00% of whom live in ZIP Code 83403. It covers 0 sq mi of land and a water area of 0 sq mi.
| CBSA Name: | Idaho Falls, IDSource: Census |
| CBSA Number: | 26820Source: Census |
| CBSA Type: | MetroSource: Census |
| CBSA Division: | --Source: Census |
| CBSA Population: | 130,374Source: Census |
| MSA: | Source: Census |
| Land Area: | --Source: Census |
| Water Area: | --Source: Census |
| Congressional District: | 02Source: USPS |
| Congressional Land Area: | 43225.09 sq miSource: Census |
| PMSA: | Source: Census |
| Intro Date: | < 2004-10Source: ZIP-Codes.com |
| Place FIPS Code: | 1639700Source: Census |
| Place Name: | Idaho Falls city; IdahoSource: Census |
We could not locate which school district 83403 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 February 1, 2026.