Twin Lakes, WA ZIP Codes
One ZIP code serves Twin Lakes, Washington: 99138. Together they are home to 1,223 residents in 468 households. That is more than the 115 people counted inside Twin Lakes Census-designated place, because these ZIP codes reach past its boundary.
Twin Lakes Census-designated place
| Measure | Census figure |
|---|---|
| Residents | 115 |
| Households | 47 |
| Median household income | $63,542 |
| Median home value | not published |
| Median age | 61.9 |
| Median rent | not published |
All 1 ZIP codes together
| Measure | Value |
|---|---|
| Residents (sum of ZIP codes) | 1,223 |
| Households (sum of ZIP codes) | 468 |
| Median household income, range across ZIP codes | $50,833 (99138) to $50,833 (99138) |
| Household-weighted average of ZIP medians (an approximation, not a true median) | $50,833 |
| Homeowners | 61.5% |
| Households with kids under 18 | 36.5% |
| Moved in the past year | 7.4% |
| Carrier routes in EDDM2GO's route library | 1 routes, 251 homes (1 of 1 ZIP codes) |
Every ZIP code in Twin Lakes
| ZIP | Mailing city | Residents | Households | Median income | Home value | Homeowners | With kids | New movers | Carrier routes | Mailboxes | Why listed |
|---|---|---|---|---|---|---|---|---|---|---|---|
| 99138 | Inchelium | 1,223 | 468 | $50,833 | $218,100 | 61.5% | 36.5% | 7.4% | 1 | 251 | 1% of its land |
A ZIP code is listed for Twin Lakes when at least 10% of its land lies inside the Twin Lakes Census-designated place, when it holds at least 10% of the place's land, or when its USPS mailing city is Twin Lakes. The table shows which applies. Totals add up whole ZIP codes, so they include any parts outside Twin Lakes.
Counties
- Ferry County — 9 ZIP codes
Price a mailing to Twin Lakes ZIP codes
EDDM guides
Pick carrier routes on the EDDM route map
Frequently asked questions
- What ZIP codes are in Twin Lakes, WA?
- 99138. A ZIP code is listed for Twin Lakes when at least 10% of its land lies inside the Twin Lakes Census-designated place, when it holds at least 10% of the place's land, or when its USPS mailing city is Twin Lakes.
- What is the population of Twin Lakes, WA?
- The Census Bureau counts 115 residents inside Twin Lakes Census-designated place (ACS 2020–2024). The 1 ZIP code that serve Twin Lakes hold 1,223 residents in all.
- What is the median household income in Twin Lakes, WA?
- $63,542 inside Twin Lakes Census-designated place, per the Census Bureau. Across its ZIP codes the medians run from $50,833 to $50,833.
- How many carrier routes and mailboxes are in Twin Lakes, WA?
- For the 1 of 1 ZIP codes in EDDM2GO's stored route library: 1 carrier routes reaching 251 residential and 0 business mailboxes.
This product uses the Census Bureau Data API but is not endorsed or certified by the Census Bureau.