| ZIP Codes: | 12 ZIP Codes (8 Standard, 3 PO Box, 1 Unique) [See All] |
| Area Codes: | 208 / 986 |
| Timezone: | Mountain (GMT -07:00) |
| Local Time: | 2:11:56 PM |
| Population: | 91,404 [See All] |
| FIPS: | 16005 |
| CBSA: | Pocatello, ID |
| Land Area: | 1,401 sq mi |
| Water Area: | 2 sq mi |
| Coordinates: | 42.7317, -112.2642 |
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91,404 residents live across 12 ZIPs covering 1,401 sq mi, served by 7 distinct USPS-recognized cities.
Population moved from 85,731 to 91,404 from 2014 to 2024 — a +6.6% change. 8 ZIPs gained residents, 2 lost.
The county's wealthiest ZIP 83245 (Inkom, $93,005 median) and poorest ZIP 83209 (Pocatello, $19,336) are 11.6 miles apart — a 4.8× income gap across local geography.
Median home values vary 2.0× across this county — from $229,300 in 83234 (Downey) to $449,000 in 83245 (Inkom).
Density varies 2471× across the county — from 5 people/sq mi in 83234 (Downey) to 12,818 in 83209 (Pocatello).
Educational attainment ranges from 17.1% bachelor's+ in 83250 (Mccammon) to 34.3% in 83201 (Pocatello) — the breadth of educational profiles across the area.
Within Idaho, this is the #6 most populous of 46 counties and ranks #16 for median household income with the #35 fastest decade growth .
Hosts 1 single-entity Unique ZIP: 83209Idaho State Univ .
Weighted by population, the typical household earns about $66,425 across the county — reflecting what a typical resident sees, not a simple ZIP average.
30.3% of adults age 25+ hold a bachelor's degree or higher (17,926 of 59,080 reporting). The most-educated ZIPs cluster around Pocatello.
8 Standard delivery, 3 PO Box only, 1 single-entity Unique ZIPs serve this county.
Median household income spans 4.8× between the wealthiest and poorest ZIPs — a sign of significant intra-county inequality.
A frontier county — vast land area with only a few residents per square mile. Daily life looks very different here than in the country's denser counties.
| ZIP | City | Type | Population | Median Income | Area (sq mi) | 10-yr Growth |
|---|---|---|---|---|---|---|
| 83201 | Pocatello | Standard | 39,902 | $66,357 | 81.0 | 6.5% |
| 83202 | Pocatello | Standard | 24,513 | $70,423 | 228.3 | 9.7% |
| 83204 | Pocatello | Standard | 18,580 | $57,146 | 335.8 | 0.4% |
| 83245 | Inkom | Standard | 2,321 | $93,005 | 104.8 | 4.3% |
| 83250 | Mccammon | Standard | 2,179 | $73,555 | 109.0 | 82.2% |
| 83234 | Downey | Standard | 1,417 | $81,083 | 273.1 | 0.7% |
| 83209 | Pocatello | Unique | 937 | $19,336 | 0.1 | 2.6% |
| 83246 | Lava Hot Springs | Standard | 821 | $73,125 | 140.5 | -13.9% |
| 83214 | Arimo | Standard | 586 | $80,333 | 100.9 | 10.4% |
| 83281 | Swan Lake | PO Box | 148 | $131,213 | 27.1 | -20.9% |
| 83205 | Pocatello | PO Box | — | — | 0.0 | — |
| 83206 | Pocatello | PO Box | — | — | 0.0 | — |