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Where 98027 is
Approximate ZIP boundary (Census ZCTA 2020). ZIP codes are mail routes, not areas, so the shape shown is the Census tabulation area that approximates it.
- 🔢 Type 98027 into a pocket calculator and turn it upside down: LZOBG — not quite a word, sorry.
- ➕ As a number, 98,027 = 61 × 1607. Its digits add up to 26, a total 2,038 other ZIP codes share.
- 💾In binary, the way a computer stores it:
10111111011101011 - 🏠 Its numerical neighbours: 98026 (Edmonds, WA, 27 mi away) and 98028 (Kenmore, WA, 20 mi away).
- 🔄 Backwards, 98027 becomes 72089 — and that is a real ZIP code: Bryant, AR, 1,762 miles away.
- 👥 41 other ZIP codes are made of exactly the same digits (02879, 07829, 07928, 09728, 09827, 20879, …). The farthest-flung twin is 09827 in APO AE, a military post office, 6,066 miles away.
- 🧭 Farther north than 96% of all ZIP codes, and farther west than 95%.
- 🎯1,278 miles northwest of the geographic center of the Lower 48, near Lebanon, Kansas.
- 🌏 Dig straight through the Earth from 98027 and you would come out at 47.51°S, 58.01°E — 573 miles from Port-aux-Français, French Southern Territories, the nearest big city to that spot.
- ☀Longest day of the year: 15h 58m of daylight. Shortest: 8h 26m.
- 📏 At 57.2 square miles of land, 98027 is bigger than 63% of ZIP codes — room for about 43 Central Parks.
- Working out the sun…
- Checking the USGS…
Source: USGS.
People and housing
| Population | 28,955This ZIP28,955 |
|---|---|
| Households | 11,804This ZIP11,804 |
| Housing units | 12,322This ZIP12,322 |
| Median age | 40.6This ZIP40.6Washington38.3US 38.9 |
| Median household income | $153,301This ZIP$153,301Washington$98,141US $80,734 |
| Median home value | $996,600This ZIP$996,600Washington$564,600US $332,700 |
| Median gross rent | $2,400This ZIP$2,400Washington$1,760US $1,413 |
| Bachelor's degree or higher | 66.8%This ZIP66.8% |
| Mean commute | 26.0 minThis ZIP26.0 min |
| Population density | 506.4 / sq miThis ZIP506.4 / sq mi |
Business and tax activity
| Business establishments | 1,268This ZIP1,268 |
|---|---|
| Employees | 22,093This ZIP22,093 |
| Annual payroll | $2,222,850,000This ZIP$2,222,850,000 |
| Tax returns filed | 15,000This ZIP15,000 |
| Total adjusted gross income | $2,824,842,000This ZIP$2,824,842,000 |
Land area
| Land area | 57.18 sq miThis ZIP57.18 sq mi |
|---|---|
| Water area | 0.79 sq miThis ZIP0.79 sq mi |
Other place names in 98027
Census places whose land this ZIP code overlaps. The Postal Service may accept other city names in an address, too.
ZIP codes near 98027
| ZIP | City | Distance |
|---|---|---|
98029 | Issaquah, WA | 3.1 mi |
98050 | Preston, WA | 3.4 mi |
98075 | Sammamish, WA | 5.4 mi |
98025 | Hobart, WA | 5.8 mi |
98024 | Fall City, WA | 6.0 mi |
98059 | Renton, WA | 6.5 mi |
98038 | Maple Valley, WA | 6.7 mi |
98074 | Sammamish, WA | 7.9 mi |
98006 | Bellevue, WA | 7.9 mi |
98058 | Renton, WA | 8.0 mi |
Find every ZIP code within 10 miles of 98027 →
Questions about this ZIP code
Where is ZIP code 98027?
98027 is in Issaquah, Washington, in King County, part of the Seattle-Tacoma-Bellevue, WA metropolitan area. Its published point location is 47.5140, -121.9935.
What county is 98027 in?
98027 lies in King County.
What area code is 98027?
Issaquah uses area code 425, from NANPA's telephone records.
What time zone is 98027 in?
98027 uses America/Los_Angeles.
How many people live in 98027?
About 28,955 people live in ZIP code 98027, in 11,804 households, at 506.4 people per square mile. These are American Community Survey 5-year estimates for the ZIP Code Tabulation Area, not a headcount.
What is the median household income in 98027?
$153,301 a year, against $98,141 across Washington.
What ZIP codes are near 98027?
The closest are 98029 (3.1 mi), 98050 (3.4 mi), 98075 (5.4 mi), 98025 (5.8 mi) and 98024 (6 mi).
Is 98027 a PO Box ZIP code?
98027 is a standard ZIP code. A normal ZIP code with street delivery.
Download or cite
Cite this page
zipcodes.pro. “98027 ZIP Code — Issaquah, Washington (King County).” Data release 2026-10-12. Retrieved 2026-10-20. https://zipcodes.pro/zip/98027
Machine-readable version of these facts:
curl https://zipcodes.pro/zip/98027.jsonUnderlying data is public domain or openly licensed — sources, vintages and licences.