| ZIP Codes: | 9 ZIP Codes (3 Standard, 6 PO Box, 0 Unique) [See All] |
| Area Codes: | 435 / 928 |
| Timezone: | Mountain (GMT -07:00) |
| Local Time: | 11:55:25 PM |
| Population: | 12,847 [See All] |
| FIPS: | 49037 |
| CBSA: | Flagstaff, AZ |
| Land Area: | 5,876 sq mi |
| Water Area: | 158 sq mi |
| Coordinates: | 37.5354, -109.6314 |
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12,847 residents live across 9 ZIPs covering 5,876 sq mi, served by 9 distinct USPS-recognized cities.
Population moved from 14,106 to 12,847 from 2014 to 2024 — a -8.9% change. 2 ZIPs gained residents, 6 lost.
The county's wealthiest ZIP 84535 (Monticello, $75,625 median) and poorest ZIP 84531 (Mexican Hat, $32,200) are 56.9 miles apart — a 2.3× income gap across local geography.
Median home values vary 6.6× across this county — from $49,600 in 84536 (Monument Valley) to $328,800 in 84511 (Blanding).
Density varies 51× across the county — from 0 people/sq mi in 84533 (Lake Powell) to 11 in 84511 (Blanding).
Educational attainment ranges from 5.6% bachelor's+ in 84536 (Monument Valley) to 29.5% in 84512 (Bluff) — the breadth of educational profiles across the area.
Within Utah, this is the #18 most populous of 29 counties and ranks #27 for median household income .
Weighted by population, the typical household earns about $61,346 across the county — reflecting what a typical resident sees, not a simple ZIP average.
19.8% of adults age 25+ hold a bachelor's degree or higher (1,562 of 7,899 reporting).
3 Standard delivery, 6 PO Box only, 0 single-entity Unique ZIPs serve this county.
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.
San Juan County lost 8.9% of residents between 2014 and 2024. ZIPs that shed the largest share:
| ZIP | City | Type | Population | Median Income | Area (sq mi) | 10-yr Growth |
|---|---|---|---|---|---|---|
| 84511 | Blanding | Standard | 4,382 | $73,218 | 392.8 | -6.4% |
| 84535 | Monticello | Standard | 2,731 | $75,625 | 2,336.5 | 2.3% |
| 84534 | Montezuma Creek | PO Box | 2,473 | $47,708 | 471.8 | 16.5% |
| 84536 | Monument Valley | PO Box | 1,387 | $35,250 | 1,022.6 | -30.6% |
| 84512 | Bluff | PO Box | 860 | $54,375 | 452.6 | -20.0% |
| 84531 | Mexican Hat | PO Box | 518 | $32,200 | 420.0 | -43.7% |
| 84530 | La Sal | PO Box | 402 | — | 233.1 | -16.9% |
| 84533 | Lake Powell | Standard | 94 | — | 426.3 | -40.1% |
| 84510 | Aneth | PO Box | — | — | 120.1 | — |