City or Town Name

Population

County

Area of State

Has Post Office?

Has Railroad?

Has Express Office?

Oak

Price

North

No

Yes

No

Oak Centre

79

Fond du Lac

East

Yes

Yes

Yes

Oak Creek

397

Milwaukee

Southeast

No

Yes

Yes

Oakdale

63

Monroe

West

Yes

Yes

Yes

Oakfield

417

Fond du Lac

East

Yes

Yes

Yes

Oak Grove

Dodge

East

Yes

No

No

Oak Hill

27

Jefferson

Southeast

Yes

No

No

Oakland

82

Jefferson

Southeast

Yes

No

No

Oakley

85

Green

South

Yes

No

No

Oakwood

117

Milwaukee

Southeast

Yes

Yes

Yes

Oasis

83

Waushara

Central

Yes

No

No

Oconomowoc

2729

Waukesha

Southeast

Yes

Yes

Yes

OCONTO

5219

Oconto

Northeast

Yes

Yes

Yes

Oconto Falls

82

Oconto

Northeast

Yes

Yes

Yes

Oconto Junction

Oconto

Northeast

No

Yes

Yes

Odanah

6

Ashland

North

Yes

Yes

No

Ogdensburgh

68

Waupaca

Central

Yes

Yes

Yes

Ogema *

176

Price

North

Yes

Yes

Yes

Oil City

39

Monroe

West

Yes

No

No

Okauchee

Waukesha

Southeast

No

Yes

No

Okee

85

Columbia

Central

Yes

Yes

Yes

Plin

18

Adams

Central

Yes

No

No

Olive

Chippewa

Northwest

No

Yes

No

Olivet

216

Pierce

Northwest

Yes

No

No

Omro

1232

Winnebago

East

Yes

Yes

Yes

Onalaska

1587

LaCrosse

West

Yes

Yes

Yes

Oneida

45

Brown

East

Yes

Yes

No

Ono

32

Pierce

Northwest

Yes

No

No

Ontario

266

Vernon

West

Yes

No

No

Oostburgh

146

Sheboygan

East

Yes

Yes

Yes

Orange

Burnett

Northwest

Yes

No

No

Ornage

Juneau

Central

No

Yes

No

Ore Dock Yard

Ashland

North

No

Yes

No

Oregon

595

Dane

South

Yes

Yes

Yes

Oxford (Orford)

Rock

South

No

Yes

Yes

Orfordville

273

Rock

South

Yes

Yes

Yes

Orihula

Winnebago

East

Yes

No

No

Orion

15

Richland

Southwest

Yes

No

No

Ormes

St. Croix

Northwest

No

Yes

No

Osceola

Polk

Northwest

No

Yes

No

OSCEOLA MILLS

384

Polk

Northwest

Yes

No

Yes

OSHKOSH

22836

Winnebago

East

Yes

Yes

Yes

Oslo

36

Manitowoc

East

Yes

No

No

Osman

Manitowoc

East

Yes

No

No

Osseo

177

Trempealeau

West

Yes

Yes

Yes

Ostrander

Waupaca

Central

Yes

Yes

No

Otsego

176

Columbia

Central

Yes

No

No

Ottawa

67

Waukesha

Southeast

Yes

No

No

Otter Creek

Eau Claire

Northwest

Yes

No

No

Otter Vale

Vernon

West

Yes

No

No

Ox Bow

Jackson

West

Yes

No

No

Oxford

372

Marquette

Central

Yes

No

No