What city is 98233 in?

98233 is a Burlington, WA mailing address. By land area, 13% lies inside Burlington and 3% lies inside Alger; the rest is outside any Census-defined city or community.

What is the population of 98233?

About 17,850 people (±821), according to the Census Bureau's American Community Survey 5-year estimates for 2020–2024. The 2020 Census counted 16,034.

What is the median household income in 98233?

$87,614 (±$8,787), compared with $98,141 for Washington as a whole. Half the households in the ZIP code earn more and half earn less.

How many carrier routes and mailboxes are in 98233?

9 USPS carrier routes with 6,932 residential and 726 business mailboxes (7,659 in all), from the route data stored by EDDM2GO. An EDDM mailing can target any combination of these routes.

What ZIP codes are near 98233?

The closest, measured center to center: 98232 (5.3 mi, Edison), 98235 (5.9 mi, Clear Lake), 98273 (6.9 mi, Mount Vernon), 98257 (10.1 mi, La Conner), 98284 (10.1 mi, Sedro-Woolley) and 98238 (11.4 mi, Conway).

98233 ZIP Code, Burlington, WA

98233 is a ZIP code in Burlington, Washington in Skagit County. It covers 33 square miles of land. The closest ZIP codes are 98232, 98235 and 98273. 17,850 people live here in 6,711 households. With about 538 people per square mile it is lightly settled, and owners and renters are mixed (59% own). Median household income is $87,614, below the Washington median of $98,141.

Quick facts

Mailing city: Burlington, WA
County: Skagit County
Land area: 33 sq mi
Population: 17,850
Median household income: $87,614
Carrier routes: 9 (6,932 homes)

Key figures

Measure	Value
Residents	17,850
Households	6,711
Median household income	$87,614
Income per person	$39,379
Median age	39.3
Homeowners	59.4%
Median home value	$502,100
Median rent	$1,708
Bachelor's degree or higher	22.3%
Average commute (minutes)	24.7
Households with kids under 18	29.5%
Moved in the past year	17.5%
Below the poverty line	12.7%
Broadband internet	93.4%
Speak a non-English language at home	18.1%

Household income

% of households	Value
<$10K	3.8%
$10–15K	2.8%
$15–25K	4.1%
$25–35K	6.0%
$35–50K	12.1%
$50–75K	14.9%
$75–100K	14.6%
$100–150K	21.9%
$150–200K	10.4%
$200K+	9.4%

Age

% of all residents	Value
<10	9.1%
10–19	15.2%
20–24	6.4%
25–34	13.9%
35–44	13.7%
45–54	11.5%
55–64	12.3%
65–74	9.2%
75+	8.9%

Tenure

% of housing units	Value
Owned, with mortgage	36.7%
Owned outright	18.9%
Rented	37.3%
Vacant	7.1%

Type of building

% of housing units	Value
Detached house	64.2%
Townhome	5.3%
2–4 units	9.9%
5–19 units	6.7%
20+ units	10.5%
Mobile / other	3.4%

Businesses in 98233

706 business establishments with 11,869 employees (ZIP Codes Business Patterns 2023).

Retail Trade: 131
Construction: 85
Accommodation and Food Services: 78
Other Services (except Public Administration): 75
Health Care and Social Assistance: 52
Manufacturing: 47
Finance and Insurance: 43
Wholesale Trade: 36

EDDM carrier routes

98233 has 9 USPS carrier routes with 6,932 residential and 726 business mailboxes. Open the EDDM route map.

Carrier routes in 98233

98233 has 9 USPS carrier routes (7 city (C), 2 rural (R)) with 6,932 residential and 726 business mailboxes. Routes range from 529 homes (C006) to 968 homes (C007); the median route has 799 homes. The Census counted 6,711 households in 98233 (2020–2024 average); USPS counts current mailboxes, including new and vacant homes.

Homes per route	Routes
1–249	0
250–499	0
500–749	4
750–999	5
1,000–1,499	0
1,500+	0

Best routes in 98233 for…

Most businesses

For B2B offers: office supplies, cleaning, IT, catering and commercial services.

Route C007 — USPS business mailboxes 323, 968 homes
Route C005 — USPS business mailboxes 110, 939 homes
Route C002 — USPS business mailboxes 97, 915 homes
Route R002 — USPS business mailboxes 77, 569 homes
Route R001 — USPS business mailboxes 40, 590 homes

Select these 5 routes on the route map

Every carrier route in 98233

Route	Type	Homes	Businesses	Est. median income	Est. owners	Est. families with kids	Est. moved in past year
C001	City	714	13	$58,044	—	—	—
C002	City	915	97	$39,446	—	—	—
C003	City	799	15	$63,194	—	—	—
C004	City	909	16	$58,044	—	—	—
C005	City	939	110	$115,555	—	—	—
C006	City	529	35	$58,044	—	—	—
C007	City	968	323	$63,194	—	—	—
R001	Rural	590	40	$111,993	—	—	—
R002	Rural	569	77	$39,446	—	—	—

Income, owners, families and movers are estimates for each route (how we estimate them); mailbox counts are current USPS figures. Open 98233 on the EDDM route map.

How route demographics are estimated

Mailbox counts come from USPS; demographics are estimates

The number of homes and businesses on each carrier route is the current USPS EDDM count. The Census Bureau does not publish figures for carrier routes, so income, homeownership, ages, families, movers and housing age on a route are EDDM2GO estimates built from Census block groups (neighborhood areas of roughly 600 to 3,000 people).

How a route gets its figures: the block-group length-share method

We trace each route's streets every 25 meters and record which block group each stretch falls in. The route's homes are spread along its streets in proportion to length, so a route with 60% of its street length in one block group is assumed to have 60% of its homes there. Each block group then contributes its Census counts in proportion to the share of its housing units that sit on the route (capped at the whole block group). Medians are recalculated from the combined income, home-value and age brackets, the way the Census Bureau computes them, not averaged.

Margins of error

Census survey figures carry a margin of error at 90% confidence; we carry it through the calculation and show it as ±. Our margins treat the route-to-block-group split as exact, so the real uncertainty is larger. Routes with fewer than 100 estimated households, large margins, or streets we could not place are flagged.

Different years

USPS mailbox counts are current. Census figures are 5-year averages for 2020–2024, so a new subdivision may have more homes on the route today than the Census counted. Use the route figures to compare routes with each other, not as an exact head count.

Why some routes show identical figures

Two routes that run through the same block group get the same percentages and medians, because the Census publishes one set of figures for the whole block group. Their mailbox counts still differ, and those are exact.

Route and mailbox counts: USPS EDDM route data. Route demographics: EDDM2GO estimates from U.S. Census Bureau American Community Survey 5-year block-group data (2020–2024) and 2024 cartographic block-group boundaries. This product uses the Census Bureau Data API but is not endorsed or certified by the Census Bureau.

Nearby ZIP codes

98232 — Edison CDP, WA (5.3 mi)
98235 — Clear Lake CDP, WA (5.9 mi)
98273 — Mount Vernon city, WA (6.9 mi)
98257 — La Conner town, WA (10.1 mi)
98284 — Sedro-Woolley city, WA (10.1 mi)
98238 — Conway CDP, WA (11.4 mi)
98221 — Anacortes city, WA (12.3 mi)
98263 — Lyman town, WA (12.9 mi)

Areas that include 98233

Where it ranks

Mail every home in 98233

Route counts on this page price as Full Service 6.5 × 9 postcards: we print, bundle by carrier route and hand the mailing to USPS. Prefer to take it to the Post Office yourself? Print only costs less and you pay postage at drop-off.

EDDM guides

ZIP code statistics describe the Census ZIP Code Tabulation Area (ZCTA) 98233, which approximates the USPS ZIP code area. Census figures: American Community Survey 5-year estimates, 2020–2024.

Frequently asked questions

What city is 98233 in?: 98233 is a Burlington, WA mailing address. By land area, 13% lies inside Burlington and 3% lies inside Alger; the rest is outside any Census-defined city or community.
What county is 98233 in?: 98233 is in Skagit County.
What is the population of 98233?: About 17,850 people (±821), according to the Census Bureau's American Community Survey 5-year estimates for 2020–2024. The 2020 Census counted 16,034.
What is the median household income in 98233?: $87,614 (±$8,787), compared with $98,141 for Washington as a whole. Half the households in the ZIP code earn more and half earn less.
How many carrier routes and mailboxes are in 98233?: 9 USPS carrier routes with 6,932 residential and 726 business mailboxes (7,659 in all), from the route data stored by EDDM2GO. An EDDM mailing can target any combination of these routes.
What ZIP codes are near 98233?: The closest, measured center to center: 98232 (5.3 mi, Edison), 98235 (5.9 mi, Clear Lake), 98273 (6.9 mi, Mount Vernon), 98257 (10.1 mi, La Conner), 98284 (10.1 mi, Sedro-Woolley) and 98238 (11.4 mi, Conway).

This product uses the Census Bureau Data API but is not endorsed or certified by the Census Bureau.