What city is 43004 in?

43004 is a Blacklick, OH mailing address. By land area, 18% lies inside Columbus; the rest is outside any Census-defined city or community.

What is the population of 43004?

About 31,477 people (±2,215), according to the Census Bureau's American Community Survey 5-year estimates for 2020–2024. The 2020 Census counted 29,982.

What is the median household income in 43004?

$101,175 (±$7,808), compared with $71,389 for Ohio as a whole. Half the households in the ZIP code earn more and half earn less.

How many carrier routes and mailboxes are in 43004?

16 USPS carrier routes with 12,192 residential and 151 business mailboxes (12,343 in all), from the route data stored by EDDM2GO. An EDDM mailing can target any combination of these routes.

What ZIP codes are near 43004?

The closest, measured center to center: 43054 (3.8 mi, New Albany), 43230 (3.9 mi, Gahanna), 43068 (4.2 mi, Reynoldsburg), 43213 (4.4 mi, Columbus), 43219 (6.2 mi, Columbus) and 43062 (6.3 mi, Pataskala).

43004 ZIP Code, Blacklick, OH

43004 is a ZIP code in Blacklick, Ohio in Franklin County. It covers 13 square miles of land. The closest ZIP codes are 43054, 43230 and 43068. 31,477 people live here in 11,419 households, more than in 9 of every 10 Ohio ZIP codes. At about 2,518 people per square mile it has suburban density, and most homes are owner-occupied (79%). Median household income is $101,175, above the Ohio median of $71,389; 41% of households have children under 18.

Quick facts

Mailing city: Blacklick, OH
County: Franklin County
Land area: 13 sq mi
Population: 31,477
Median household income: $101,175
Carrier routes: 16 (12,192 homes)

Key figures

Measure	Value
Residents	31,477
Households	11,419
Median household income	$101,175
Income per person	$50,258
Median age	37.2
Homeowners	79.4%
Median home value	$335,400
Median rent	$1,464
Bachelor's degree or higher	44.8%
Average commute (minutes)	23.5
Households with kids under 18	40.7%
Moved in the past year	10.3%
Below the poverty line	6.5%
Broadband internet	98.8%
Speak a non-English language at home	28.5%

Household income

% of households	Value
<$10K	1.6%
$10–15K	0.8%
$15–25K	2.8%
$25–35K	4.2%
$35–50K	9.9%
$50–75K	17.7%
$75–100K	12.1%
$100–150K	23.6%
$150–200K	10.3%
$200K+	16.9%

Age

% of all residents	Value
<10	14.2%
10–19	14.2%
20–24	5.4%
25–34	13.9%
35–44	18.0%
45–54	12.3%
55–64	10.4%
65–74	7.5%
75+	4.3%

Tenure

% of housing units	Value
Owned, with mortgage	61.1%
Owned outright	16.6%
Rented	20.1%
Vacant	2.2%

Type of building

% of housing units	Value
Detached house	72.3%
Townhome	9.2%
2–4 units	2.9%
5–19 units	12.2%
20+ units	2.8%
Mobile / other	0.6%

Businesses in 43004

280 business establishments with 3,385 employees (ZIP Codes Business Patterns 2023).

Professional, Scientific, and Technical Services: 40
Health Care and Social Assistance: 35
Real Estate and Rental and Leasing: 28
Wholesale Trade: 22
Retail Trade: 22
Construction: 21
Administrative and Support and Waste Management and Remediation Services: 20
Other Services (except Public Administration): 20

EDDM carrier routes

43004 has 16 USPS carrier routes with 12,192 residential and 151 business mailboxes. Open the EDDM route map.

Carrier routes in 43004

43004 has 16 USPS carrier routes (15 rural (R), 1 highway contract (H)) with 12,192 residential and 151 business mailboxes. Routes range from 509 homes (R001) to 1,049 homes (R009); the median route has 769 homes. The Census counted 11,419 households in 43004 (2020–2024 average); USPS counts current mailboxes, including new and vacant homes.

Homes per route	Routes
1–249	0
250–499	0
500–749	6
750–999	8
1,000–1,499	2
1,500+	0

Best routes in 43004 for…

Most businesses

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

Route R011 — USPS business mailboxes 77, 648 homes
Route R003 — USPS business mailboxes 25, 968 homes
Route R007 — USPS business mailboxes 12, 795 homes
Route R008 — USPS business mailboxes 9, 719 homes
Route R002 — USPS business mailboxes 8, 540 homes

Select these 5 routes on the route map

Every carrier route in 43004

Route	Type	Homes	Businesses	Est. median income	Est. owners	Est. families with kids	Est. moved in past year
H050	Highway contract	606	1	$81,258	—	—	—
R001	Rural	509	4	$130,677	—	—	—
R002	Rural	540	8	$128,759	—	—	—
R003	Rural	968	25	$99,334	—	—	—
R004	Rural	754	2	$43,801	—	—	—
R005	Rural	764	1	$103,589	—	—	—
R006	Rural	778	1	$103,589	—	—	—
R007	Rural	795	12	$100,434	—	—	—
R008	Rural	719	9	$103,206	—	—	—
R009	Rural	1,049	1	$51,388	—	—	—
R010	Rural	711	6	$125,624	—	—	—
R011	Rural	648	77	$128,759	—	—	—
R012	Rural	786	0	$100,434	—	—	—
R013	Rural	774	2	$132,577	—	—	—
R014	Rural	1,003	2	$55,218	—	—	—
R015	Rural	788	0	$132,577	—	—	—

Income, owners, families and movers are estimates for each route (how we estimate them); mailbox counts are current USPS figures. Open 43004 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

43054 — New Albany city, OH (3.8 mi)
43230 — Gahanna city, OH (3.9 mi)
43068 — Reynoldsburg city, OH (4.2 mi)
43213 — Columbus city, OH (4.4 mi)
43219 — Columbus city, OH (6.2 mi)
43062 — Pataskala city, OH (6.3 mi)
43218 — Columbus city, OH (6.3 mi)
43227 — Columbus city, OH (6.7 mi)

Areas that include 43004

Columbus, OH ZIP codes — 43 ZIP codes
Blacklick, OH ZIP codes — 1 ZIP code
Franklin County ZIP codes — 46 ZIP codes
Ohio ZIP code data

Where it ranks

Mail every home in 43004

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.

Columbus EDDM mailing

EDDM guides

ZIP code statistics describe the Census ZIP Code Tabulation Area (ZCTA) 43004, which approximates the USPS ZIP code area. Census figures: American Community Survey 5-year estimates, 2020–2024.

Frequently asked questions

What city is 43004 in?: 43004 is a Blacklick, OH mailing address. By land area, 18% lies inside Columbus; the rest is outside any Census-defined city or community.
What county is 43004 in?: 43004 is in Franklin County.
What is the population of 43004?: About 31,477 people (±2,215), according to the Census Bureau's American Community Survey 5-year estimates for 2020–2024. The 2020 Census counted 29,982.
What is the median household income in 43004?: $101,175 (±$7,808), compared with $71,389 for Ohio as a whole. Half the households in the ZIP code earn more and half earn less.
How many carrier routes and mailboxes are in 43004?: 16 USPS carrier routes with 12,192 residential and 151 business mailboxes (12,343 in all), from the route data stored by EDDM2GO. An EDDM mailing can target any combination of these routes.
What ZIP codes are near 43004?: The closest, measured center to center: 43054 (3.8 mi, New Albany), 43230 (3.9 mi, Gahanna), 43068 (4.2 mi, Reynoldsburg), 43213 (4.4 mi, Columbus), 43219 (6.2 mi, Columbus) and 43062 (6.3 mi, Pataskala).

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