Northwestern Ohio

Northwest or northwestern Ohio consists of multiple counties in the northwestern corner of the United States state of Ohio. This area borders Lake Erie, southern Michigan, and eastern Indiana. Some areas in northwestern Ohio are also considered the Black Swamp area. The Toledo metropolitan area is also part of the region. Just like any other region, there is no universally agreed-upon boundary for northwestern Ohio, as the entire area is defined differently by the opinions of multiple people.

The area's population in the year 2000 was 1,639,144. The area is declining in population, specifically in the northern regions (counties shaded in the darker blue and Allen County). Southern areas such as Marion and Morrow counties as well as the city of Findlay are growing.

The city of Toledo serves as the principal city for the region of Northwest Ohio. Most of the region's television channels and radio stations are licensed in either Toledo, Perrysburg or nearby Bowling Green. Though Toledo is an industrial city, the region is primarily agriculture with relatively small centers of commerce in various locations. In recent years, Lucas County (i.e., Toledo, Sylvania, etc.) has seen a steep decline in population since 1970, whereas neighboring Wood County (i.e., Bowling Green, Perrysburg, etc.) and Hancock County (i.e., Findlay) have experienced modest, yet steady, growth.

These places are or may be classified as being in northwestern Ohio, depending on the definition being applied:

If a city is a county seat, it has been listed above according to the county in which it lies. Many of the cities, townships, and villages in northwest Ohio are clustered in the Toledo MSA. This list is incomplete.

Extreme Northwest Ohio, or Far N'western Ohio, is a portion of Northwest Ohio best known as the Great Black Swamp area due to its natural history. The counties of Defiance, Fulton, Henry, Paulding, Putnam, Van Wert, and Williams in the state of Ohio are usually classified as extreme northwest Ohio.

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