ZIP Code 99256 in Spokane, WA

Data Last Updated: February 1, 2026
City:Spokane, Washington
Names to Avoid:
Spokane City Trea
County:Spokane County
Timezone:Pacific (GMT -08:00)
Local Time:10:21:21 AM
Population:No Population Data
Area Code:509
Classification:Unique [Company/Government]
Coordinates:47.6588, -117.4250
Quick Link:
https://www.zip-codes.com/zip-code/99256/zip-code-99256.asp

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99256 - City of Spokane Treasurer

Spokane, WA | Spokane County | Government

City of Spokane Treasurer

Entity TypeGovernment
LocationSpokane, WA
CountySpokane
FacilityPost Office
Coordinates47.6604, -117.4241
CoverageSingle point (Coordinates mark the primary delivery location)
Key Facts
  • Exclusive ZIP dedicated to institutional mail
  • Mail processed at dedicated Post Office
  • Home to City of Spokane
  • Delivers to 1 business address (no residential delivery)
  • Located in the Spokane, WA metro area
  • Manages city investments and banking relationships under Municipal Code 7.15
  • City of Spokane financial operations with $2.4 billion net position
Entity Type
Government
Facility
Post Office
Neighborhood
Riverside
Buildings
1

About ZIP Code 99256

The City of Spokane Treasurer's office operates under dedicated ZIP code 99256 in Spokane County, Washington. This municipal finance department manages the city's investment policies, banking relationships, and works with Washington Public Depositaries. The Treasurer oversees broker/dealer selection and investment programs under the authority of Spokane Municipal Code chapter 7.15. This long-established postal designation has served the city's financial operations for over two decades.

Located in Spokane's Riverside neighborhood near Spokane Falls, postal records identify 3 ZIP+4 codes routing to City of Spokane facilities. This dedicated designation ensures municipal correspondence bypasses standard residential mail processing. Census demographic data is not available, consistent with commercial government operations. Spokane is the valid mailing city for this designation.

Delivery Points
Residential:0
Business:1

Named Buildings

Buildings registered in the USPS ZIP+4 database with designated codes for direct mail delivery.

City of Spokane on Spokane Falls

Address Format

[Recipient Name]
[Street Address]
SPOKANE, WA 99256

Business & Employment Statistics


ZIP Code 99256 is assigned to a single organization or institution. Detailed business demographics are not published for unique ZIP Codes. USPS data shows 0 residential mailboxes and 1 business mailboxes, reflecting local delivery coverage.

# Residential Mailboxes:0Source: USPS
# Business Mailboxes:1Source: USPS
Total Delivery Receptacles:1Source: USPS
Single Family Delivery Units:0Source: USPS
Multi Family Delivery Units:0Source: USPS
# of Businesses:0Source: CBP
1st Quarter Payroll:$0Source: CBP
Annual Payroll:$0Source: CBP
# of Employees:0Source: CBP

Geography, Land Area, & Statistical Classifications


ZIP Code 99256 is located in Spokane County, Washington, within the Spokane-Spokane Valley, WA Metropolitan Statistical Area (CBSA 44060) and Washington's 5th Congressional District. This Metro area has a population of 471,221 people, about 0.00% of whom live in ZIP Code 99256. It covers 0 sq mi of land and a water area of 0 sq mi.

CBSA Name:Spokane-Spokane Valley, WASource: Census
CBSA Number:44060Source: Census
CBSA Type:MetroSource: Census
CBSA Division:--Source: Census
CBSA Population:471,221Source: Census
MSA:Spokane, WA MSASource: Census
Land Area:--Source: Census
Water Area:--Source: Census
Congressional District:05Source: USPS
Congressional Land Area:15473.13 sq miSource: Census
PMSA:--Source: Census
Intro Date:< 2004-10Source: ZIP-Codes.com
Place FIPS Code:5367000Source: Census
Place Name:Spokane city; WashingtonSource: Census

Adjacent & Nearby ZIP Codes


99258 | | 99252

Schools in ZIP Code 99256


We could not locate which school district 99256 belongs to, but we will update this once new district data is released. There are no public schools nor private schools with a mailing address in this ZIP Code. Listing Nearby schools instead. It also has 6 colleges, universities or post secondary education institutions nearby which would be a short commute to.

Lumen High School 718 W. Riverside Avenue
Spokane, WA 99218
District: UnknownNearby
Spokane Regional Health District 1101 W. College Ave
Spokane, WA 99201
District: Spokane Public SchoolsNearby
Open Doors 200 N. Bernard
Spokane, WA 99201
District: Spokane Public SchoolsNearby
Spokane County Jail Public Safety Building
Spokane, WA 99260
District: Spokane Public SchoolsNearby
Lewis & Clark High School 521 W 4th Ave
Spokane, WA 99204
District: Spokane Public SchoolsNearby
Enlightium Academy 1330 N Washington St Ste 5050
Spokane, WA 99201
District: Private SchoolNearby
Cataldo Catholic School 455 W 18th Ave
Spokane, WA 99203
District: Private SchoolNearby
Trinity Catholic School 2315 N Cedar St
Spokane, WA 99205
District: Private SchoolNearby

Colleges & Post Secondary Schools near ZIP Code 99256


Glen Dow Academy Of Hair Design W 309 Riverside Ave
Spokane, WA 99201
Type: Post Secondary
Washington State University-Spokane 412 East Spokane Falls Blvd
Spokane, WA 99202-9600
Type: Post Secondary
Gonzaga University E 502 Boone Ave
Spokane, WA 99258-0001
Type: Post Secondary
Northwest Hvac/R Training Center 204 E. Nora Ave
Spokane, WA 99207
Type: Post Secondary
Great Northern University 611 East Indiana Avenue
Spokane, WA 99207-2550
Type: Post Secondary
Spokane Falls Community College 3410 W Whistalks Way
Spokane, WA 99224-5288
Type: Post Secondary

Sources & References


Our sources include trusted federal and licensed data from the United States Postal Service, U.S. Census Bureau, U.S. Geological Survey, Centers for Medicare & Medicaid Services, and the National Center for Education Statistics, along with proprietary datasets created by ZIP-Codes.com. Data last updated on February 1, 2026.

  1. U.S. Postal Service [Last Updated: 2/1/2026], https://www.usps.com
  2. ZIP-Codes.com Proprietary Data Enhancements [Updated: 2/1/2026], https://www.zip-codes.com
  3. U.S. Census [Updated: Varies], https://www.census.gov
    • U.S. Census Office of Management and Budget [Updated: As Released]
    • U.S. Census 2020 Demographic & Housing Characteristics (DHC) [Decennial] [Updated: 5/25/2023]
    • U.S. Census 2011-2024 American Community Survey 5-year estimates (ACS) [Annually] [Updated: Annually, As Released]
    • U.S. Census Business Patterns (CBD) [Annually] [Updated: Annually, As Released]
    • U.S. Census American National Standards Institute (ANSI) [Updated: As Released]
  4. U.S. Geological Survey [Updated: Varies], https://www.usgs.gov
  5. Centers for Medicare & Medicaid Services [Updated: Annually, As Released], https://www.cms.gov
  6. National Center for Education Statistics [Updated: 2/1/2026], https://nces.ed.gov