| ZIP Codes: | 18 ZIP Codes (13 Standard, 5 PO Box, 0 Unique) [See All] |
| Area Codes: | 458 / 541 |
| Timezone: | Pacific (GMT -08:00) |
| Local Time: | 2:13:28 PM |
| Population: | 68,333 [See All] |
| FIPS: | 41035 |
| CBSA: | Klamath Falls, OR |
| Land Area: | 5,741 sq mi |
| Water Area: | 139 sq mi |
| Coordinates: | 42.5406, -121.7103 |
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68,333 residents live across 18 ZIPs covering 5,741 sq mi, served by 16 distinct USPS-recognized cities.
Population moved from 64,375 to 68,333 from 2014 to 2024 — a +6.1% change. 8 ZIPs gained residents, 9 lost.
The county's wealthiest ZIP 97737 (Gilchrist, $107,546 median) and poorest ZIP 97622 (Bly, $24,902) are 84.5 miles apart — a 4.3× income gap across local geography.
Median home values vary 1.5× across this county — from $205,900 in 97633 (Merrill) to $315,400 in 97737 (Gilchrist).
Density varies 119× across the county — from 1 people/sq mi in 97733 (Crescent) to 86 in 97603 (Klamath Falls).
Educational attainment ranges from 9.8% bachelor's+ in 97633 (Merrill) to 30.6% in 97733 (Crescent) — the breadth of educational profiles across the area.
Within Oregon, this is the #15 most populous of 38 counties and ranks #24 for median household income with the #22 fastest decade growth .
Weighted by population, the typical household earns about $60,205 across the county — reflecting what a typical resident sees, not a simple ZIP average.
23.0% of adults age 25+ hold a bachelor's degree or higher (10,997 of 47,829 reporting). The most-educated ZIPs cluster around Klamath Falls.
13 Standard delivery, 5 PO Box only, 0 single-entity Unique ZIPs serve this county.
Median household income spans 4.3× 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 |
|---|---|---|---|---|---|---|
| 97603 | Klamath Falls | Standard | 33,222 | $66,937 | 384.4 | 11.9% |
| 97601 | Klamath Falls | Standard | 22,964 | $51,780 | 932.5 | 6.2% |
| 97624 | Chiloquin | Standard | 3,643 | $48,628 | 1,368.5 | 12.4% |
| 97623 | Bonanza | Standard | 2,813 | $66,927 | 549.8 | 18.9% |
| 97632 | Malin | Standard | 1,600 | $44,167 | 55.3 | 11.8% |
| 97633 | Merrill | Standard | 1,246 | $62,019 | 38.7 | -13.3% |
| 97733 | Crescent | Standard | 639 | $45,759 | 878.9 | 10.0% |
| 97737 | Gilchrist | Standard | 557 | $107,546 | 83.0 | 38.6% |
| 97622 | Bly | PO Box | 369 | $24,902 | 316.7 | -19.6% |
| 97634 | Midland | PO Box | 277 | $68,450 | 1.9 | -35.6% |
| 97621 | Beatty | Standard | 257 | $23,786 | 176.5 | -1.9% |
| 97626 | Fort Klamath | PO Box | 251 | — | 96.2 | 20.1% |
| 97627 | Keno | Standard | 229 | $63,563 | 149.5 | -73.7% |
| 97625 | Dairy | Standard | 134 | $123,409 | 71.6 | -35.3% |
| 97731 | Chemult | Standard | 117 | $147,679 | 278.9 | -78.0% |
| 97639 | Sprague River | Standard | 15 | — | 146.5 | -97.1% |
| 97604 | Crater Lake | PO Box | 0 | — | 211.6 | -100.0% |
| 97602 | Klamath Falls | PO Box | — | — | 0.0 | — |