What city is 85643 in?

85643 is a Willcox, AZ mailing address. None of its land lies inside a Census-defined city or community.

What is the population of 85643?

About 8,476 people (±601), according to the Census Bureau's American Community Survey 5-year estimates for 2020–2024. The 2020 Census counted 8,208.

What is the median household income in 85643?

$57,903 (±$12,941), compared with $79,964 for Arizona as a whole. Half the households in the ZIP code earn more and half earn less.

How many carrier routes and mailboxes are in 85643?

8 USPS carrier routes with 3,375 residential and 262 business mailboxes (3,638 in all), from the route data stored by EDDM2GO. An EDDM mailing can target any combination of these routes.

85643 ZIP Code, Willcox, AZ

Q: What county is 85643 in?

85643 is mostly in Graham County (51% of its land), with smaller parts in Cochise County.

85643 is a ZIP code in Willcox, Arizona — mostly in Graham County (51% of its land), with smaller parts in Cochise County. It covers 2,207 square miles of land. 8,476 people live here in 3,001 households. It is rural, with fewer than 100 people per square mile, and owners and renters are mixed (67% own). Median household income is $57,903, below the Arizona median of $79,964.

Quick facts

Mailing city: Willcox, AZ
County: Graham County
Land area: 2,207 sq mi
Population: 8,476
Median household income: $57,903
Carrier routes: 8 (3,375 homes)

Key figures

Measure	Value
Residents	8,476
Households	3,001
Median household income	$57,903
Income per person	$27,429
Median age	40.6
Homeowners	66.8%
Median home value	$173,900
Median rent	$957
Bachelor's degree or higher	18.8%
Average commute (minutes)	21.8
Households with kids under 18	27.3%
Moved in the past year	7.2%
Below the poverty line	15.1%
Broadband internet	84.4%
Speak a non-English language at home	32.2%

Household income

% of households	Value
<$10K	6.5%
$10–15K	8.1%
$15–25K	11.5%
$25–35K	6.6%
$35–50K	14.4%
$50–75K	17.4%
$75–100K	12.8%
$100–150K	12.1%
$150–200K	7.6%
$200K+	3.0%

Age

% of all residents	Value
<10	11.4%
10–19	11.8%
20–24	6.6%
25–34	13.2%
35–44	14.6%
45–54	9.5%
55–64	13.0%
65–74	13.3%
75+	6.6%

Tenure

% of housing units	Value
Owned, with mortgage	18.4%
Owned outright	33.0%
Rented	25.5%
Vacant	23.1%

Type of building

% of housing units	Value
Detached house	62.9%
Townhome	0.8%
2–4 units	2.6%
5–19 units	0.0%
20+ units	1.7%
Mobile / other	32.0%

Businesses in 85643

179 business establishments with 1,658 employees (ZIP Codes Business Patterns 2023).

Retail Trade: 27
Accommodation and Food Services: 21
Construction: 20
Other Services (except Public Administration): 19
Health Care and Social Assistance: 16
Manufacturing: 14
Transportation and Warehousing: 12
Wholesale Trade: 7

EDDM carrier routes

85643 has 8 USPS carrier routes with 3,375 residential and 262 business mailboxes. Open the EDDM route map.

Carrier routes in 85643

85643 has 8 USPS carrier routes (2 city (C), 2 rural (R), 4 highway contract (H)) with 3,375 residential and 262 business mailboxes. Routes range from 125 homes (H002) to 991 homes (C001); the median route has 395 homes. The Census counted 3,001 households in 85643 (2020–2024 average); USPS counts current mailboxes, including new and vacant homes.

Homes per route	Routes
1–249	2
250–499	4
500–749	1
750–999	1
1,000–1,499	0
1,500+	0

Best routes in 85643 for…

Most businesses

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

Route C001 — USPS business mailboxes 165, 991 homes
Route C002 — USPS business mailboxes 51, 371 homes
Route R001 — USPS business mailboxes 13, 568 homes
Route R002 — USPS business mailboxes 11, 419 homes
Route H001 — USPS business mailboxes 9, 457 homes

Select these 5 routes on the route map

Every carrier route in 85643

Route	Type	Homes	Businesses	Est. median income	Est. owners	Est. families with kids	Est. moved in past year
C001	City	991	165	$26,653	—	—	—
C002	City	371	51	$40,199	—	—	—
H001	Highway contract	457	9	$58,655	—	—	—
H002	Highway contract	125	3	$38,160	—	—	—
H003	Highway contract	276	8	$54,476	—	—	—
H004	Highway contract	168	2	$58,655	—	—	—
R001	Rural	568	13	$36,458	—	—	—
R002	Rural	419	11	$44,328	—	—	—

Income, owners, families and movers are estimates for each route (how we estimate them); mailbox counts are current USPS figures. Open 85643 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.

Areas that include 85643

Where it ranks

Mail every home in 85643

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) 85643, which approximates the USPS ZIP code area. Census figures: American Community Survey 5-year estimates, 2020–2024.

Frequently asked questions

What city is 85643 in?: 85643 is a Willcox, AZ mailing address. None of its land lies inside a Census-defined city or community.
What county is 85643 in?: 85643 is mostly in Graham County (51% of its land), with smaller parts in Cochise County.
What is the population of 85643?: About 8,476 people (±601), according to the Census Bureau's American Community Survey 5-year estimates for 2020–2024. The 2020 Census counted 8,208.
What is the median household income in 85643?: $57,903 (±$12,941), compared with $79,964 for Arizona as a whole. Half the households in the ZIP code earn more and half earn less.
How many carrier routes and mailboxes are in 85643?: 8 USPS carrier routes with 3,375 residential and 262 business mailboxes (3,638 in all), from the route data stored by EDDM2GO. An EDDM mailing can target any combination of these routes.

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