ZIP code 98256
Where is ZIP code 98256?
Index, Washington
Snohomish County · PO Box only ZIP code
ZIP code 98256 belongs to Index, Washington in Snohomish County. 98256 is a PO Box only ZIP code: it is used for post office boxes at the Index post office, not for street addresses. It is in the Pacific Time zone and uses area codes 360 and 564. About 368 people live in the 98256 area, where the median household income is $94,375. The closest ZIP codes are 98251 (Gold Bar, 4.3 mi west), 98224 (Baring, 4.4 mi southeast) and 98294 (Sultan, 9.3 mi west).
| ZIP code | 98256 |
|---|---|
| Type | PO Box only (no street delivery) |
| Status | Active |
| City | Index |
| State | Washington (WA) |
| County | Snohomish County |
| Time zone | Pacific Time · now |
| Area codes | 360, 564 |
| Coordinates | 47.8118, -121.5497 map |
| 3-digit prefix | 982 |
Population and income in 98256
| Population | 368 · lower than 86% of Washington ZIP codes |
|---|---|
| People per square mile | 5 · lower than 86% of Washington ZIP codes |
| Median age | 45.2 years · higher than 66% of Washington ZIP codes |
| Men / women | 51% / 49% |
| Median household income | $94,375 · higher than 63% of Washington ZIP codes |
| Income per person | $41,920 |
| Below the poverty line | 12% |
| Bachelor’s degree or higher | 13% of adults 25+ |
| Median home value | $430,000 · lower than 55% of Washington ZIP codes |
| Housing units | 310 |
| Households | 156 (2.36 people on average) |
| Owners / renters | 86% / 14% |
| Land area | 75.56 sq mi (plus 0.33 sq mi of water) |
Source: U.S. Census Bureau, American Community Survey 5-year estimates (2020–2024) for ZIP Code Tabulation Area 98256. Census ZIP areas are close to, but not exactly the same as, USPS delivery areas.
ZIP codes near 98256
| ZIP code | City | Distance | Type |
|---|---|---|---|
| 98251 | Gold Bar, WA | 4.3 mi W | Standard |
| 98224 | Baring, WA | 4.4 mi SE | PO Box only |
| 98294 | Sultan, WA | 9.3 mi W | Standard |
| 98293 | Startup, WA | 10.9 mi W | PO Box only |
| 98288 | Skykomish, WA | 11.7 mi SE | PO Box only |
| 98272 | Monroe, WA | 18.7 mi W | Standard |
| 98019 | Duvall, WA | 19 mi W | Standard |
| 98014 | Carnation, WA | 20.6 mi SW | Standard |
| 98024 | Fall City, WA | 23.1 mi SW | Standard |
| 98065 | Snoqualmie, WA | 23.3 mi SW | Standard |
| 98077 | Woodinville, WA | 24 mi W | Standard |
| 98291 | Snohomish, WA | 24.2 mi W | PO Box only |
Straight-line distance between ZIP code center points. Find every ZIP code within 10 miles of 98256 or measure the distance to another ZIP code.
How to address mail to 98256
PO BOX 123
INDEX WA 98256
Put the city, the two-letter state code and the ZIP code on the last line. Adding the 4-digit ZIP+4 code (98256-XXXX) helps mail sort faster but isn’t required.
Questions
- What city is ZIP code 98256?
- 98256 is a Index, Washington ZIP code.
- What county is 98256 in?
- ZIP code 98256 is in Snohomish County, Washington.
- What time zone is ZIP code 98256 in?
- 98256 is in the Pacific Time zone (America/Los_Angeles).
- What area code is 98256?
- Phone numbers in ZIP code 98256 use area codes 360 and 564.
- What is the population of ZIP code 98256?
- About 368 people live in ZIP code 98256, according to the Census Bureau’s American Community Survey (2020–2024).
- What is the median income in 98256?
- The median household income in 98256 is $94,375 a year, higher than 63% of Washington ZIP codes.
- Can I use 98256 for a street address?
- No. 98256 is only for PO Boxes. Street addresses in Index use another ZIP code.
- What ZIP codes are near 98256?
- The nearest ZIP codes to 98256 are 98251 (Gold Bar, 4.3 miles), 98224 (Baring, 4.4 miles), 98294 (Sultan, 9.3 miles) and 98293 (Startup, 10.9 miles).