Every ZIP code in the United States, with weather, radar, trivia and the numbers behind it. Five digits since 1963!

ZIP stands for Zone Improvement Plan. The codes went live on July 1, 1963.The lowest ZIP code is 00501 — the IRS in Holtsville, New York.The highest ZIP code is 99950, in Ketchikan, Alaska.Type 07734 into a calculator and turn it upside down: hELLO. It is Keansburg, New Jersey.12345 belongs to one company: General Electric in Schenectady, New York.The first digit is a region: 0 is New England and New Jersey, 9 is the West Coast, Alaska and Hawaii.Mr. ZIP, the cartoon mailman, was the mascot that sold the idea to America.ZIP+4 arrived in 1983 and can narrow a ZIP down to one side of one block.A ZIP code is a mail route, not a place: plenty of them cross county and even state lines.Play ZIP Hunt: guess the secret ZIP code of the day in six tries.
zipcodes.pro — STATE/OH/COUNTY/JEFFERSON

Jefferson County, OH ZIP codes

There are 22 ZIP codes in Jefferson County, OH, in 21 towns, from 43901 to 43971. The largest are 43952 (Steubenville), 43953 (Steubenville) and 43964 (Toronto).

The county seat is Steubenville.

ZIP codes
22
Towns
21
County seat
Steubenville
County FIPS
39081
State
Ohio
Population
64,518
Median household income
$59,055
Land area
408 sq mi
Area codes
220, 740

Jefferson County ZIP codes by town

Steubenville (county seat)
43952, 43953

Each ZIP code is listed under the county most of its land lies in and the town the Postal Service names it for; a ZIP code's own page shows exactly how it is split.

Map of Jefferson County ZIP codes

43901439084391043913439174392543926439304393243938439394394143943439444394843952439534396143963439644397043971

The ZIP codes of Jefferson County, shaded. Outlines are Census ZIP Code Tabulation Areas (2020), which approximate the mail routes; PO-box and single-address codes have no area and are not drawn. Click any area to open its ZIP code.

Jefferson County in numbers

About 64,518 people live in Jefferson County, in 27,143 households, the 39th most populous of Ohio's 88 counties. The median household income is $59,055 a year, 17% below the Ohio median of $71,389 (US: $80,734). The median owner-occupied home is valued at $127,800 (41% below the Ohio median), and median gross rent is $835 a month. The median age is 44.3; 20.3% of adults 25 and over hold a bachelor's degree or higher (31.5% across Ohio); the average commute takes 24 minutes.

Population64,518Jefferson64,518
Households27,143Jefferson27,143
Median age44.3Jefferson44.3Ohio39.7US 38.9
Median household income$59,055Jefferson$59,055Ohio$71,389US $80,734
Median home value$127,800Jefferson$127,800Ohio$214,800US $332,700
Median gross rent$835Jefferson$835Ohio$1,034US $1,413
Bachelor's degree or higher20.3%Jefferson20.3%Ohio31.5%US 35.7%
Mean commute23.8 minJefferson23.8 minOhio23.4 minUS 26.4 min
Population density158 / sq miJefferson158 / sq mi

U.S. Census Bureau, American Community Survey 2020–2024 5-year estimates. Survey estimates carry margins of error, wider for small places. Sources and methods.

Largest towns in Jefferson County

Largest towns in Jefferson County
TownZIP codesPopulation
Steubenville 2 18,124
Toronto 1 5,293
Mingo Junction 1 3,254
Tiltonsville 1 1,311
Brilliant 1 1,213
Hammondsville 1 1,017
Yorkville 1 908
Adena 1 716
Richmond 1 640
Smithfield 1 623
Dillonvale 1 586
Bergholz 1 510
Rayland 1 507
Mount Pleasant 1 274
Irondale 1 272

Population of the census place of that name where there is one, otherwise of the ZIP codes the Postal Service addresses by it. A town's ZIP codes can reach past the county line.

Neighbouring counties

Counties that share a ZIP code with Jefferson County.

Not sure you are in Jefferson County? What county am I in? answers from your location, near a county line included.

Every ZIP code in Jefferson County, with figures

ZIP codes in Jefferson County
ZIP City Type Population Median income Median home
43901 Adena , OH Standard 2,232 $63,603 $107,600
43908 Bergholz , OH Standard 1,073 $62,841 $100,000
43910 Bloomingdale , OH Standard 3,191 $71,396 $181,600
43913 Brilliant , OH Standard 1,213 $43,914 $82,500
43917 Dillonvale , OH Standard 2,207 $59,280 $93,900
43925 East Springfield , OH Standard 39 — —
43926 Empire , OH Standard 252 $45,938 —
43930 Hammondsville , OH Standard 1,017 $68,382 —
43932 Irondale , OH Standard 1,008 $54,531 $152,000
43938 Mingo Junction , OH Standard 5,660 $55,446 $101,300
43939 Mount Pleasant , OH Standard 341 $46,250 $97,200
43941 Piney Fork , OH No street area — — —
43943 Rayland , OH Standard 3,457 $54,784 $135,500
43944 Richmond , OH Standard 2,593 $69,228 $167,900
43948 Smithfield , OH Standard 623 $142,606 $78,500
43952 Steubenville , OH Standard 17,836 $47,624 $124,300
43953 Steubenville , OH Standard 11,274 $74,107 $149,700
43961 Stratton , OH Standard 221 $39,500 $60,700
43963 Tiltonsville , OH Standard 1,262 $56,813 $105,200
43964 Toronto , OH Standard 8,952 $60,365 $132,800
43970 Wolf Run , OH No street area — — —
43971 Yorkville , OH Standard 923 $49,327 $135,100

Cite this page

zipcodes.pro. “Jefferson County ZIP codes.” Data release 2026-10-12. Retrieved 2026-10-20. https://zipcodes.pro/state/oh/county/jefferson

Underlying data is public domain or openly licensed — sources, vintages and licences.