GetZips
ZIP Code98511

Tumwater, WA

Thurston County · Washington · United States

PacificNon-residential ZIP21 ZIPs in county

What this ZIP is

98511 has no measured residential population

This is not missing data. USPS assigns some ZIP codes exclusively to PO Box clusters, or to a single high-volume recipient such as a government office, university mailroom, or large business. Nobody is counted as living there. The US Census Bureau only publishes demographic estimates for ZIP Code Tabulation Areas (ZCTAs), which are built from residential census blocks. 98511 has no matching ZCTA, so there is genuinely nothing to report for population, income, or housing — rather than a figure of zero.

Geographic and postal details below are accurate. For demographics of the surrounding area, use the nearby ZIP codes at the bottom of this page.

At a glance

98511 by the numbers

Postal and geographic facts for 98511. No demographic data exists for this ZIP code.

ZIP type
PO Box or unique ZIP
No residential population
Coordinates
46.9616, -123.0283
Decimal degrees (WGS 84)
Time zone
Pacific
America/Los_Angeles
County
Thurston
Washington

Location

Where 98511 is

46.9616, -123.0283 · GeoNames centroidOpen larger map →
Coordinates46.9616, -123.0283
Time zoneAmerica/Los_Angeles
CountyThurston County
StateWashington (WA)
Coordinate sourceGeoNames centroid

Local time

America/Los_Angeles

—:—:—

Current weather

Live from the National Weather Service

Loading forecast…

Distance to major cities

Straight-line, computed from coordinates

Seattle, WA55.2 mi
San Francisco, CA635.5 mi
Los Angeles, CA926.2 mi
Denver, CO1031.1 mi

Overview

Understanding ZIP code 98511

ZIP code 98511 is assigned to Tumwater, WA, and falls within Thurston County. Like every US postal code, it began as a mail-routing device rather than a geographic boundary — the US Postal Service groups delivery routes under a single code so carriers and sorting equipment can process mail efficiently. This particular code, however, has no residential population attached to it — more on that below.

Where to stay

Where to stay in Tumwater, WA

Accommodation options in and around 98511 vary. Searching by the wider Tumwater area rather than the postal code alone will return the fullest set of results.

For reference, Seattle, WA is about 55.2 miles away in a straight line, which is worth factoring in if you are comparing a stay here against one closer to the city centre.

Availability and pricing change constantly, so the live search below will give you a more accurate picture than any figure we could publish here. It opens results for this area on Booking.com.

Book a Hotel →

Opens Booking.com in a new tab. We are not affiliated with Booking.com and receive nothing from this link.

Practical uses

What ZIP code 98511 is used for

Beyond addressing mail, 98511 does a lot of quiet administrative work. Retailers use it to calculate shipping and sales tax at checkout. Insurers use it to set premiums, since risk profiles vary geographically. Employers and marketers use it to define service areas. Government agencies use it to route benefits and organise reporting. If you have ever been asked for a postal code by a form that clearly does not intend to send you anything, this is why.

Because 98511 carries no residential population, it is used almost entirely for delivery and administrative routing rather than for demographic analysis. If you are researching the area around it, the neighbouring postal codes listed further down this page will be far more informative.

One caution worth repeating: a postal code is not a neighbourhood. 98511 may cover parts of several distinct areas, and a single neighbourhood in Tumwater may be split across more than one code. Boundaries also shift as USPS adjusts delivery routes. Treat the figures here as describing a delivery area, which is what they actually measure.

Nearby

ZIP codes near 98511

The eight closest postal codes by centroid distance, each with its own full profile. You can also browse every Washington ZIP code or use the ZIP Express Lookup to search by city, county or time zone.

More in Thurston County

Look up another

Search any ZIP code

Questions

Common questions about 98511

What city is ZIP code 98511 in?
98511 serves Tumwater, Washington, in Thurston County, United States.
Why is there no population data for 98511?
98511 is a non-residential ZIP code — either a PO Box cluster or a code assigned to a single high-volume recipient. The Census Bureau only publishes demographic data for ZIP Code Tabulation Areas, which are built from residential census blocks. 98511 has no matching ZCTA, so no population figure exists.
What time zone is 98511 in?
98511 observes Pacific Time (America/Los_Angeles). This zone observes daylight saving time.
Does 98511 cover more than one city or county?
This page lists Tumwater as the primary place and Thurston County as the county. ZIP codes follow mail delivery routes rather than municipal or county lines, so a single code can straddle boundaries, and USPS also recognises alternate acceptable city names for many codes. If you need the definitive answer for a specific street address, the USPS ZIP Code Lookup is the authority.
Can ZIP code 98511 change?
Yes. USPS adjusts ZIP codes as delivery volumes shift — codes are occasionally split, merged, retired or newly created, and boundaries move more often than most people assume. The Census Bureau's ZCTA definitions, which underpin the demographic figures on this page, are redrawn only once a decade, so the two can drift apart between censuses.

Methodology

Where this data comes from

  • Postal geography — GeoNames open postal code database (CC BY 4.0), cross-checked against the US Census Gazetteer.
  • Weather — NOAA National Weather Service, fetched live in your browser.
  • Map — OpenStreetMap contributors (ODbL).
On accuracy. ACS figures are survey estimates, not counts. The margin of error shown alongside the population figure means the true value has a 90% chance of falling in that range. For small ZIP codes the error can be large relative to the estimate — treat the direction as more reliable than the exact number.