Centre County, Pennsylvania
Centre County is a county in the U.S. state of Pennsylvania. As of the 2010 census, the population was 153,990. Its county seat is Bellefonte. Centre County comprises the State College, PA Metropolitan Statistical Area.
Center Region, Argentina
The Center Region of Argentina (in Spanish, Región Centro) is the political and economical association of the provinces of Córdoba, Santa Fe and Entre Ríos. 
The legal framework for this kind of regional association, the first and only in the country, is Article 124 of the Argentine Constitution.
These three provinces, located along the central and central-east part of the country, have a total population of 7,225,649 () and an area of 377,109 km², being large enough to function as an operative unit in the international economy. The Center Region concentrates 53% of the production of grain, 70% of the manufacturing of agricultural machinery, 90% of the production of vegetable oils, 70% of the production of milk, the whole production of peanuts, more than half of the poultry, and 34% of the cattle in Argentina.
On 15 November 1973 an Intention Letter was signed by the governors of the three provinces (Carlos Sylvestre Begnis, Ricardo Obregón Cano and Juan Cresto), acknowledging their political interest in joining. The project, however, did not progress until 9 May 1998, when Ramón Mestre (governor of Córdoba) and Jorge Obeid (governor of Santa Fe) issued a joint declaration.