99122 ZIP Code, Davenport, WA

99122 is a ZIP code in Davenport, Washington in Lincoln County. It covers 601 square miles of land. The closest ZIP codes are 99147, 99134 and 99117. 4,046 people live here in 1,666 households. It is rural, with fewer than 100 people per square mile, and most homes are owner-occupied (82%). Median household income is $82,386, below the Washington median of $98,141; the median age is 46.5, older than most ZIP codes.

Quick facts

Key figures

MeasureValue
Residents4,046
Households1,666
Median household income$82,386
Income per person$41,208
Median age46.5
Homeowners82.0%
Median home value$331,700
Median rent$1,064
Bachelor's degree or higher29.3%
Average commute (minutes)27.3
Households with kids under 1824.4%
Moved in the past year14.1%
Below the poverty line11.8%
Broadband internet89.0%
Speak a non-English language at home2.8%

Household income

% of householdsValue
<$10K5.2%
$10–15K2.7%
$15–25K7.9%
$25–35K7.0%
$35–50K10.2%
$50–75K11.4%
$75–100K18.8%
$100–150K18.2%
$150–200K9.2%
$200K+9.4%

Age

% of all residentsValue
<1012.1%
10–1912.7%
20–246.3%
25–347.2%
35–449.6%
45–5412.7%
55–6415.1%
65–7416.2%
75+8.0%

Tenure

% of housing unitsValue
Owned, with mortgage27.6%
Owned outright34.2%
Rented13.5%
Vacant24.8%

Type of building

% of housing unitsValue
Detached house82.6%
Townhome1.0%
2–4 units0.7%
5–19 units2.1%
20+ units2.2%
Mobile / other11.6%

Businesses in 99122

133 business establishments with 937 employees (ZIP Codes Business Patterns 2023).

EDDM carrier routes

99122 has 4 USPS carrier routes with 1,636 residential and 43 business mailboxes. Open the EDDM route map.

Carrier routes in 99122

99122 has 4 USPS carrier routes (3 rural (R), 1 highway contract (H)) with 1,636 residential and 43 business mailboxes. Routes range from 172 homes (H011) to 658 homes (R001); the median route has 403 homes. The Census counted 1,666 households in 99122 (2020–2024 average); USPS counts current mailboxes, including new and vacant homes.

Homes per routeRoutes
1–2491
250–4992
500–7491
750–9990
1,000–1,4990
1,500+0

Best routes in 99122 for…

Most businesses

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

  1. Route R003 — USPS business mailboxes 15, 441 homes
  2. Route R002 — USPS business mailboxes 13, 365 homes
  3. Route H011 — USPS business mailboxes 8, 172 homes
  4. Route R001 — USPS business mailboxes 7, 658 homes

Select these 4 routes on the route map

Every carrier route in 99122

RouteTypeHomesBusinessesEst. median incomeEst. ownersEst. families with kidsEst. moved in past year
H011Highway contract1728$66,315———
R001Rural6587$76,997———
R002Rural36513$62,743———
R003Rural44115$71,760———

Income, owners, families and movers are estimates for each route (how we estimate them); mailbox counts are current USPS figures. Open 99122 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

Areas that include 99122

Where it ranks

Mail every home in 99122

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) 99122, which approximates the USPS ZIP code area. Census figures: American Community Survey 5-year estimates, 2020–2024.

Frequently asked questions

What city is 99122 in?
99122 is a Davenport, WA mailing address. None of its land lies inside a Census-defined city or community.
What county is 99122 in?
99122 is in Lincoln County.
What is the population of 99122?
About 4,046 people (±334), according to the Census Bureau's American Community Survey 5-year estimates for 2020–2024. The 2020 Census counted 3,989.
What is the median household income in 99122?
$82,386 (±$10,603), 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 99122?
4 USPS carrier routes with 1,636 residential and 43 business mailboxes (1,679 in all), from the route data stored by EDDM2GO. An EDDM mailing can target any combination of these routes.
What ZIP codes are near 99122?
The closest, measured center to center: 99147 (16.7 mi), 99134 (16.9 mi, Harrington), 99117 (17.1 mi, Creston), 99040 (17.4 mi), 99029 (17.6 mi, Reardan) and 99008 (18 mi).

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