What city is 31021 in?

31021 is a Dublin, GA mailing address. By land area, 7% lies inside Dublin; the rest is outside any Census-defined city or community.

What is the population of 31021?

About 28,190 people (±937), according to the Census Bureau's American Community Survey 5-year estimates for 2020–2024. The 2020 Census counted 29,051.

What is the median household income in 31021?

$55,697 (±$8,479), compared with $77,353 for Georgia as a whole. Half the households in the ZIP code earn more and half earn less.

How many carrier routes and mailboxes are in 31021?

24 USPS carrier routes with 12,647 residential and 1,136 business mailboxes (13,781 in all), from the route data stored by EDDM2GO. An EDDM mailing can target any combination of these routes.

What ZIP codes are near 31021?

The closest, measured center to center: 31019 (8.1 mi, Dexter), 31027 (8.7 mi, East Dublin), 31075 (9 mi, Rentz), 31022 (10.7 mi, Dudley), 30454 (12.5 mi) and 31012 (15.4 mi, Chester).

31021 ZIP Code, Dublin, GA

31021 is a ZIP code in Dublin, Georgia in Laurens County. It covers 233 square miles of land. The closest ZIP codes are 31019, 31027 and 31075. 28,190 people live here in 10,961 households. With about 121 people per square mile it is lightly settled, and owners and renters are mixed (55% own). Median household income is $55,697, below the Georgia median of $77,353.

Quick facts

Mailing city: Dublin, GA
County: Laurens County
Land area: 233 sq mi
Population: 28,190
Median household income: $55,697
Carrier routes: 24 (12,647 homes)

Key figures

Measure	Value
Residents	28,190
Households	10,961
Median household income	$55,697
Income per person	$33,709
Median age	37.7
Homeowners	55.3%
Median home value	$182,700
Median rent	$856
Bachelor's degree or higher	21.9%
Average commute (minutes)	21.9
Households with kids under 18	30.7%
Moved in the past year	12.2%
Below the poverty line	26.8%
Broadband internet	89.2%
Speak a non-English language at home	3.3%

Household income

% of households	Value
<$10K	7.2%
$10–15K	8.5%
$15–25K	13.5%
$25–35K	7.7%
$35–50K	9.9%
$50–75K	15.5%
$75–100K	11.3%
$100–150K	14.7%
$150–200K	6.5%
$200K+	5.1%

Age

% of all residents	Value
<10	13.1%
10–19	13.6%
20–24	6.5%
25–34	13.6%
35–44	11.1%
45–54	11.0%
55–64	13.0%
65–74	10.3%
75+	7.8%

Tenure

% of housing units	Value
Owned, with mortgage	21.6%
Owned outright	26.2%
Rented	38.2%
Vacant	13.9%

Type of building

% of housing units	Value
Detached house	64.2%
Townhome	1.2%
2–4 units	10.9%
5–19 units	6.6%
20+ units	1.6%
Mobile / other	15.4%

Businesses in 31021

877 business establishments with 13,284 employees (ZIP Codes Business Patterns 2023).

Retail Trade: 181
Health Care and Social Assistance: 148
Accommodation and Food Services: 101
Other Services (except Public Administration): 92
Construction: 56
Finance and Insurance: 56
Professional, Scientific, and Technical Services: 53
Real Estate and Rental and Leasing: 43

EDDM carrier routes

31021 has 24 USPS carrier routes with 12,647 residential and 1,136 business mailboxes. Open the EDDM route map.

Carrier routes in 31021

31021 has 24 USPS carrier routes (10 city (C), 14 rural (R)) with 12,647 residential and 1,136 business mailboxes. Routes range from 271 homes (R020) to 983 homes (C005); the median route has 488 homes. The Census counted 10,961 households in 31021 (2020–2024 average); USPS counts current mailboxes, including new and vacant homes.

Homes per route	Routes
1–249	0
250–499	12
500–749	9
750–999	3
1,000–1,499	0
1,500+	0

Best routes in 31021 for…

Most businesses

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

Route C004 — USPS business mailboxes 166, 587 homes
Route C003 — USPS business mailboxes 134, 444 homes
Route C005 — USPS business mailboxes 125, 983 homes
Route C006 — USPS business mailboxes 125, 401 homes
Route R018 — USPS business mailboxes 94, 425 homes

Select these 5 routes on the route map

Every carrier route in 31021

Route	Type	Homes	Businesses	Est. median income	Est. owners	Est. families with kids	Est. moved in past year
C001	City	577	51	$50,619	—	—	—
C002	City	549	67	$71,282	—	—	—
C003	City	444	134	$35,302	—	—	—
C004	City	587	166	$99,119	—	—	—
C005	City	983	125	$47,535	—	—	—
C006	City	401	125	$36,935	—	—	—
C008	City	942	55	$35,161	—	—	—
C009	City	762	11	$76,627	—	—	—
C010	City	597	1	$76,627	—	—	—
C011	City	302	94	$36,935	—	—	—
R001	Rural	411	4	$52,576	—	—	—
R003	Rural	449	4	$31,386	—	—	—
R004	Rural	530	4	$60,522	—	—	—
R005	Rural	399	12	$65,620	—	—	—
R008	Rural	470	8	$60,522	—	—	—
R010	Rural	445	13	$60,278	—	—	—
R011	Rural	465	14	$71,282	—	—	—
R012	Rural	574	29	$71,282	—	—	—
R014	Rural	505	11	$60,278	—	—	—
R016	Rural	578	18	$67,972	—	—	—
R017	Rural	468	59	$60,522	—	—	—
R018	Rural	425	94	$60,278	—	—	—
R019	Rural	513	11	$37,092	—	—	—
R020	Rural	271	26	$37,092	—	—	—

Income, owners, families and movers are estimates for each route (how we estimate them); mailbox counts are current USPS figures. Open 31021 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

31019 — Dexter town, GA (8.1 mi)
31027 — East Dublin city, GA (8.7 mi)
31075 — Rentz city, GA (9 mi)
31022 — Dudley city, GA (10.7 mi)
30454 (12.5 mi)
31012 — Chester town, GA (15.4 mi)
31009 — Cadwell town, GA (15.6 mi)
31065 — Montrose town, GA (15.6 mi)

Areas that include 31021

Where it ranks

Mail every home in 31021

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) 31021, which approximates the USPS ZIP code area. Census figures: American Community Survey 5-year estimates, 2020–2024.

Frequently asked questions

What city is 31021 in?: 31021 is a Dublin, GA mailing address. By land area, 7% lies inside Dublin; the rest is outside any Census-defined city or community.
What county is 31021 in?: 31021 is in Laurens County.
What is the population of 31021?: About 28,190 people (±937), according to the Census Bureau's American Community Survey 5-year estimates for 2020–2024. The 2020 Census counted 29,051.
What is the median household income in 31021?: $55,697 (±$8,479), compared with $77,353 for Georgia as a whole. Half the households in the ZIP code earn more and half earn less.
How many carrier routes and mailboxes are in 31021?: 24 USPS carrier routes with 12,647 residential and 1,136 business mailboxes (13,781 in all), from the route data stored by EDDM2GO. An EDDM mailing can target any combination of these routes.
What ZIP codes are near 31021?: The closest, measured center to center: 31019 (8.1 mi, Dexter), 31027 (8.7 mi, East Dublin), 31075 (9 mi, Rentz), 31022 (10.7 mi, Dudley), 30454 (12.5 mi) and 31012 (15.4 mi, Chester).

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