What city is 36421 in?

36421 is a Andalusia, AL mailing address. By land area, 5% lies inside Babbie, 4% lies inside Andalusia and 2% lies inside River Falls; the rest is outside any Census-defined city or community.

What is the population of 36421?

About 9,799 people (±827), according to the Census Bureau's American Community Survey 5-year estimates for 2020–2024. The 2020 Census counted 9,166.

What is the median household income in 36421?

$65,801 (±$6,296), compared with $63,999 for Alabama as a whole. Half the households in the ZIP code earn more and half earn less.

How many carrier routes and mailboxes are in 36421?

8 USPS carrier routes with 4,535 residential and 209 business mailboxes (4,748 in all), from the route data stored by EDDM2GO. An EDDM mailing can target any combination of these routes.

What ZIP codes are near 36421?

The closest, measured center to center: 36476 (3 mi, River Falls), 36038 (5.6 mi, Gantt), 36474 (9.8 mi, River Falls), 36420 (10.8 mi, Andalusia), 36028 (13 mi, Dozier) and 36467 (15.3 mi, Opp).

36421 ZIP Code, Andalusia, AL

Q: What county is 36421 in?

36421 is mostly in Covington County (84% of its land), with smaller parts in Conecuh County.

36421 is a ZIP code in Andalusia, Alabama — mostly in Covington County (84% of its land), with smaller parts in Conecuh County. It covers 213 square miles of land. The closest ZIP codes are 36476, 36038 and 36474. 9,799 people live here in 3,856 households. It is rural, with fewer than 100 people per square mile, and most homes are owner-occupied (81%). Median household income is $65,801, close to the Alabama median of $63,999.

Quick facts

Mailing city: Andalusia, AL
County: Covington County
Land area: 213 sq mi
Population: 9,799
Median household income: $65,801
Carrier routes: 8 (4,535 homes)

Key figures

Measure	Value
Residents	9,799
Households	3,856
Median household income	$65,801
Income per person	$32,410
Median age	42
Homeowners	80.6%
Median home value	$170,900
Median rent	$794
Bachelor's degree or higher	20.7%
Average commute (minutes)	25.8
Households with kids under 18	31.3%
Moved in the past year	8.6%
Below the poverty line	12.9%
Broadband internet	90.3%
Speak a non-English language at home	1.5%

Household income

% of households	Value
<$10K	7.0%
$10–15K	3.2%
$15–25K	8.7%
$25–35K	8.1%
$35–50K	11.6%
$50–75K	18.5%
$75–100K	15.1%
$100–150K	16.3%
$150–200K	7.0%
$200K+	4.5%

Age

% of all residents	Value
<10	11.2%
10–19	13.2%
20–24	3.1%
25–34	10.8%
35–44	15.6%
45–54	10.1%
55–64	13.6%
65–74	13.3%
75+	8.8%

Tenure

% of housing units	Value
Owned, with mortgage	28.9%
Owned outright	36.5%
Rented	15.4%
Vacant	19.3%

Type of building

% of housing units	Value
Detached house	71.2%
Townhome	0.6%
2–4 units	3.2%
5–19 units	1.0%
20+ units	0.8%
Mobile / other	23.3%

Businesses in 36421

161 business establishments with 1,442 employees (ZIP Codes Business Patterns 2023).

Construction: 24
Retail Trade: 22
Other Services (except Public Administration): 18
Transportation and Warehousing: 16
Professional, Scientific, and Technical Services: 15
Administrative and Support and Waste Management and Remediation Services: 12
Manufacturing: 10
Finance and Insurance: 10

EDDM carrier routes

36421 has 8 USPS carrier routes with 4,535 residential and 209 business mailboxes. Open the EDDM route map.

Carrier routes in 36421

36421 has 8 USPS carrier routes (8 rural (R)) with 4,535 residential and 209 business mailboxes. Routes range from 334 homes (R012) to 777 homes (R009); the median route has 573 homes. The Census counted 3,856 households in 36421 (2020–2024 average); USPS counts current mailboxes, including new and vacant homes.

Homes per route	Routes
1–249	0
250–499	1
500–749	6
750–999	1
1,000–1,499	0
1,500+	0

Best routes in 36421 for…

Most businesses

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

Route R012 — USPS business mailboxes 69, 334 homes
Route R003 — USPS business mailboxes 32, 585 homes
Route R009 — USPS business mailboxes 30, 777 homes
Route R004 — USPS business mailboxes 24, 512 homes
Route R010 — USPS business mailboxes 17, 613 homes

Select these 5 routes on the route map

Every carrier route in 36421

Route	Type	Homes	Businesses	Est. median income	Est. owners	Est. families with kids	Est. moved in past year
R002	Rural	560	11	$61,867	—	—	—
R003	Rural	585	32	$61,867	—	—	—
R004	Rural	512	24	$56,966	—	—	—
R006	Rural	561	12	$54,351	—	—	—
R009	Rural	777	30	$56,380	—	—	—
R010	Rural	613	17	$54,351	—	—	—
R011	Rural	593	14	$47,016	—	—	—
R012	Rural	334	69	$39,086	—	—	—

Income, owners, families and movers are estimates for each route (how we estimate them); mailbox counts are current USPS figures. Open 36421 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

36476 — River Falls town, AL (3 mi)
36038 — Gantt town, AL (5.6 mi)
36474 — River Falls town, AL (9.8 mi)
36420 — Andalusia city, AL (10.8 mi)
36028 — Dozier town, AL (13 mi)
36467 — Opp city, AL (15.3 mi)
36442 — Florala town, AL (19.1 mi)
36009 — Brantley town, AL (21.4 mi)

Areas that include 36421

Andalusia, AL ZIP codes — 2 ZIP codes
Babbie, AL ZIP codes — 2 ZIP codes
River Falls, AL ZIP codes — 3 ZIP codes
Heath, AL ZIP codes — 1 ZIP code
Sanford, AL ZIP codes — 2 ZIP codes
Gantt, AL ZIP codes — 2 ZIP codes
Conecuh County ZIP codes — 8 ZIP codes
Covington County ZIP codes — 10 ZIP codes
Alabama ZIP code data

Where it ranks

Mail every home in 36421

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) 36421, which approximates the USPS ZIP code area. Census figures: American Community Survey 5-year estimates, 2020–2024.

Frequently asked questions

What city is 36421 in?: 36421 is a Andalusia, AL mailing address. By land area, 5% lies inside Babbie, 4% lies inside Andalusia and 2% lies inside River Falls; the rest is outside any Census-defined city or community.
What county is 36421 in?: 36421 is mostly in Covington County (84% of its land), with smaller parts in Conecuh County.
What is the population of 36421?: About 9,799 people (±827), according to the Census Bureau's American Community Survey 5-year estimates for 2020–2024. The 2020 Census counted 9,166.
What is the median household income in 36421?: $65,801 (±$6,296), compared with $63,999 for Alabama as a whole. Half the households in the ZIP code earn more and half earn less.
How many carrier routes and mailboxes are in 36421?: 8 USPS carrier routes with 4,535 residential and 209 business mailboxes (4,748 in all), from the route data stored by EDDM2GO. An EDDM mailing can target any combination of these routes.
What ZIP codes are near 36421?: The closest, measured center to center: 36476 (3 mi, River Falls), 36038 (5.6 mi, Gantt), 36474 (9.8 mi, River Falls), 36420 (10.8 mi, Andalusia), 36028 (13 mi, Dozier) and 36467 (15.3 mi, Opp).

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