What city is 30557 in?

30557 is a Martin, GA mailing address. By land area, 4% lies inside Martin, 4% lies inside Gumlog and 3% lies inside Avalon; the rest is outside any Census-defined city or community.

What is the population of 30557?

About 4,756 people (±666), according to the Census Bureau's American Community Survey 5-year estimates for 2020–2024. The 2020 Census counted 5,094.

What is the median household income in 30557?

$64,722 (±$9,429), 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 30557?

5 USPS carrier routes with 2,748 residential and 22 business mailboxes (2,770 in all), from the route data stored by EDDM2GO. An EDDM mailing can target any combination of these routes.

What ZIP codes are near 30557?

The closest, measured center to center: 30538 (4.7 mi, Toccoa), 30553 (6.3 mi, Gumlog), 30577 (9.8 mi, Toccoa), 30521 (10.2 mi, Carnesville), 30516 (11.1 mi, Bowersville) and 29693 (11.3 mi, Westminster).

30557 ZIP Code, Martin, GA

Q: What county is 30557 in?

30557 is mostly in Franklin County (62% of its land), with smaller parts in Stephens County.

30557 is a ZIP code in Martin, Georgia — mostly in Franklin County (62% of its land), with smaller parts in Stephens County. It covers 58 square miles of land. The closest ZIP codes are 30538, 30553 and 30577. 4,756 people live here in 1,862 households. It is rural, with fewer than 100 people per square mile, and most homes are owner-occupied (82%). Median household income is $64,722, below the Georgia median of $77,353.

Quick facts

Mailing city: Martin, GA
County: Franklin County
Land area: 58 sq mi
Population: 4,756
Median household income: $64,722
Carrier routes: 5 (2,748 homes)

Key figures

Measure	Value
Residents	4,756
Households	1,862
Median household income	$64,722
Income per person	$38,152
Median age	39.8
Homeowners	81.8%
Median home value	$185,700
Median rent	$867
Bachelor's degree or higher	15.2%
Average commute (minutes)	27.8
Households with kids under 18	28.8%
Moved in the past year	6.1%
Below the poverty line	14.5%
Broadband internet	85.5%
Speak a non-English language at home	2.0%

Household income

% of households	Value
<$10K	6.3%
$10–15K	5.9%
$15–25K	8.9%
$25–35K	6.7%
$35–50K	11.5%
$50–75K	16.6%
$75–100K	18.3%
$100–150K	14.1%
$150–200K	6.3%
$200K+	5.4%

Age

% of all residents	Value
<10	11.2%
10–19	7.1%
20–24	5.7%
25–34	21.0%
35–44	7.1%
45–54	9.9%
55–64	15.7%
65–74	11.5%
75+	10.6%

Tenure

% of housing units	Value
Owned, with mortgage	25.9%
Owned outright	33.9%
Rented	13.2%
Vacant	27.0%

Type of building

% of housing units	Value
Detached house	62.6%
Townhome	0.0%
2–4 units	0.3%
5–19 units	0.0%
20+ units	0.0%
Mobile / other	37.1%

Businesses in 30557

40 business establishments with 194 employees (ZIP Codes Business Patterns 2023).

Construction: 8
Other Services (except Public Administration): 7
Professional, Scientific, and Technical Services: 6
Retail Trade: 4
Administrative and Support and Waste Management and Remediation Services: 4
Wholesale Trade: 3

EDDM carrier routes

30557 has 5 USPS carrier routes with 2,748 residential and 22 business mailboxes. Open the EDDM route map.

Carrier routes in 30557

30557 has 5 USPS carrier routes (5 rural (R)) with 2,748 residential and 22 business mailboxes. Routes range from 420 homes (R005) to 614 homes (R004); the median route has 595 homes. The Census counted 1,862 households in 30557 (2020–2024 average); USPS counts current mailboxes, including new and vacant homes.

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

Best routes in 30557 for…

Most businesses

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

Route R004 — USPS business mailboxes 6, 614 homes
Route R001 — USPS business mailboxes 6, 517 homes
Route R005 — USPS business mailboxes 6, 420 homes
Route R002 — USPS business mailboxes 4, 595 homes

Select these 4 routes on the route map

Every carrier route in 30557

Route	Type	Homes	Businesses	Est. median income	Est. owners	Est. families with kids	Est. moved in past year
R001	Rural	517	6	$55,327	—	—	—
R002	Rural	595	4	$61,777	—	—	—
R003	Rural	602	0	$58,758	—	—	—
R004	Rural	614	6	$64,786	—	—	—
R005	Rural	420	6	$53,747	—	—	—

Income, owners, families and movers are estimates for each route (how we estimate them); mailbox counts are current USPS figures. Open 30557 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

30538 — Toccoa city, GA (4.7 mi)
30553 — Gumlog CDP, GA (6.3 mi)
30577 — Toccoa city, GA (9.8 mi)
30521 — Carnesville city, GA (10.2 mi)
30516 — Bowersville town, GA (11.1 mi)
29693 — Westminster city, SC (11.3 mi)
30520 — Canon city, GA (11.3 mi)
29643 — Fair Play CDP, SC (12.1 mi)

Areas that include 30557

Where it ranks

Mail every home in 30557

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) 30557, which approximates the USPS ZIP code area. Census figures: American Community Survey 5-year estimates, 2020–2024.

Frequently asked questions

What city is 30557 in?: 30557 is a Martin, GA mailing address. By land area, 4% lies inside Martin, 4% lies inside Gumlog and 3% lies inside Avalon; the rest is outside any Census-defined city or community.
What county is 30557 in?: 30557 is mostly in Franklin County (62% of its land), with smaller parts in Stephens County.
What is the population of 30557?: About 4,756 people (±666), according to the Census Bureau's American Community Survey 5-year estimates for 2020–2024. The 2020 Census counted 5,094.
What is the median household income in 30557?: $64,722 (±$9,429), 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 30557?: 5 USPS carrier routes with 2,748 residential and 22 business mailboxes (2,770 in all), from the route data stored by EDDM2GO. An EDDM mailing can target any combination of these routes.
What ZIP codes are near 30557?: The closest, measured center to center: 30538 (4.7 mi, Toccoa), 30553 (6.3 mi, Gumlog), 30577 (9.8 mi, Toccoa), 30521 (10.2 mi, Carnesville), 30516 (11.1 mi, Bowersville) and 29693 (11.3 mi, Westminster).

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