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List of highways numbered 12

Wikimedia list article

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General referenceInterpretive dossier study · Crown Archives visual atlas
Record originEnglish Wikipedia
Text licenseCC BY-SA 4.0
Source revisionSep 9, 2026
Entity authorityQ6622494
Source-derived summary

Route 12 or Highway 12 can refer to:

For a list of roads named A12, see A12 roads.

International

AH12 Asian Highway 12

E12 European route E12

E012 European route E012

Argentina

National Route 12

Australia

NSW

M12 Motorway

NT

Plenty Highway

VIC/SA

Mallee Highway

South Gippsland Highway

Austria

Inntal Autobahn

Bulgaria

Републикански път I-12

Canada

Alberta Highway 12

British Columbia Highway 12

Manitoba Highway 12

Nova Scotia Trunk 12

Ontario Highway 12

Prince Edward Island Route 12

Quebec Route 12 (former)

Saskatchewan Highway 12

China

G12 Expressway

Cuba

Highway 2–12

Highway 4–12

Czech Republic

I/12 Highway; Czech: Silnice I/12

Dominican Republic

DR-12

Greece

EO12 road

India

National Highway 12 (India)

Iran

Road 12

Iraq

Highway 12 (Iraq)

Ireland

N12 road (Ireland)

Israel

Highway 12 (Israel)

Italy

Autostrada A12

RA 12

State road 12

Japan

Japan National Route 12

Korea, South

Expressway 12

Muan–Gwangju Expressway

Gwangju–Daegu Expressway

Malaysia

Ampang–Kuala Lumpur Elevated Highway

FT 12 Tun Razak Highway

A12 Jalan Changkat Keruing

New Zealand

New Zealand State Highway 12

Nigeria

A12 highway (Nigeria)

Pakistan

M-12 motorway Sambrial-Kharian

Paraguay

National Route 12

Poland

Motorway A12 (former; 1986–2000/2001)

Expressway S12

National road 12

Romania

DN12 - Drumul Național 12

A12 - Pitești–Craiova Expressway

South Africa

N12 road (South Africa)

Taiwan

Prov 12 Provincial Highway 12 (Taiwan)

United Kingdom

British A12 (London-Great Yarmouth)

Northern Irish M12 (Craigavon)

A12 road (Northern Ireland)

United States

Interstate 12

U.S. Route 12

New England Interstate Route 12 (former)

Alabama State Route 12 (former)

Arkansas Highway 12

California State Route 12

County Route A12 (California)

County Route E12 (California)

County Route G12 (California)

County Route J12 (California)

County Route S12 (California)

Colorado State Highway 12

Connecticut Route 12

Delaware Route 12

Florida State Road 12

County Road 12 (Gadsden County, Florida)

County Road 12 (Leon County, Florida)

County Road 12 (Liberty County, Florida)

Georgia State Route 12

Illinois Route 12 (former)

Iowa Highway 12

County Route C12 (Humboldt County, Iowa)

K-12 (Kansas highway) (former)

Kentucky Route 12

Louisiana Highway 12

Louisiana State Route 12 (former)

Maryland Route 12

Massachusetts Route 12

M-12 (Michigan highway) (former)

County Road 12 (Cook County, Minnesota)

County Road 12 (Goodhue County, Minnesota)

County Road 12 (Hennepin County, Minnesota)

County Road 12 (Washington County, Minnesota)

Mississippi Highway 12

Missouri Route 12

Nebraska Highway 12

Nevada State Route 12 (former)

New Hampshire Route 12

New Jersey Route 12

County Route 12 (Monmouth County, New Jersey)

New Mexico State Road 12

New York State Route 12

County Route 12 (Allegany County, New York)

County Route 12 (Cattaraugus County, New York)

County Route 12 (Chemung County, New York)

County Route 12 (Chenango County, New York)

County Route 12 (Clinton County, New York)

County Route 12 (Genesee County, New York)

County Route 12 (Greene County, New York)

County Route 12 (Jefferson County, New York)

County Route 12 (Nassau County, New York)

County Route 12 (Niagara County, New York)

County Route 12 (Onondaga County, New York)

County Route 12 (Otsego County, New York)

County Route 12 (Putnam County, New York)

County Route 12 (Schuyler County, New York)

County Route 12 (St. Lawrence County, New York)

County Route 12 (Steuben County, New York)

County Route 12 (Suffolk County, New York)

County Route 12 (Ulster County, New York)

County Route 12 (Warren County, New York)

North Carolina Highway 12

Ohio State Route 12

Pennsylvania Route 12

Rhode Island Route 12

South Carolina Highway 12

South Dakota Highway 12 (former)

Tennessee State Route 12

Texas State Highway 12

Texas State Highway Loop 12

Ranch to Market Road 12

Texas Park Road 12

Utah State Route 12

Vermont Route 12

State Route 12 (Virginia 1918-1933) (former)

State Route 12 (Virginia 1933-1935) (former)

State Route 12 (Virginia 1935-1953) (former)

State Road 12 (Washington 1905–1919) (former)

Washington State Route 12 (1964-1967) (former)

Primary State Highway 12 (Washington) (former)

Secondary State Highway 12G (Washington) (former)

Secondary State Highway 12H (Washington) (former)

West Virginia Route 12

Wisconsin Highway 12 (former)

Wyoming Highway 12

Territories

Guam Highway 12

Puerto Rico Highway 12

Uruguay

Route 12 Dr.

Editorial summary

“List of highways numbered 12” enters the record as wikimedia list article. Crown Archives preserves that source wording while asking what List, highways and numbered can confirm, complicate or overturn.

Editorial reviewA practical starting point whose main value is the path it opens into stronger specialist and primary sources. The current lead gives the account dated anchors—1986, 2000, 2001, 1918—that can be checked directly. The selected authority fields contribute no independent date. Its strongest next move is a source search built around List, highways and numbered.
Editorial analysis

Why this record matters

“List of highways numbered 12” is worth following because a concise public description often conceals a longer documentary argument. Here, List, highways and numbered provides the most credible route into that argument.

Evidence profile

Vocabulary and entity names are the principal evidence signals here, because they determine the precision of every later search. The source revision retrieved here is dated Sep 9, 2026. The linked authority identifier is Q6622494. None of the 0 selected statements returned an explicit reference. The first chronological checks are 1986, 2000, 2001 and 1918.

Critical limits

A concise general-reference account can conceal disagreements about scope, terminology or the weight assigned to individual sources. The lead is largely declarative, so disagreement and counter-evidence require a deliberate search beyond the opening account. Authority statements aid reconciliation but still require their own references, qualifiers and ranks to be checked.

How to read it

Use the entry as an orientation point, then follow its citations and revision history. Names, dates and institutional relationships should be checked against the original record.

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Verify next

The closest primary source, responsible institution and strongest cited specialist reference.

Three-step research path

  1. Establish the record: confirm the title “List of highways numbered 12”, its source revision and the description used here.
  2. Expand the search: follow List of highways numbered 12 primary sources, List of highways numbered 12 archive and List research across catalogues and specialist indexes.
  3. Test the account: compare the strongest cited source with the responsible institution’s current record and note any disagreement.

Questions for further research

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Source & attribution

This entry incorporates text from List of highways numbered 12” on English Wikipedia. Contributors are listed in the page history. Text is available under the Creative Commons Attribution-ShareAlike 4.0 License. Selected authority identifiers and statements are retrieved from Wikidata under CC0; their references and qualifiers remain part of the verification path.