Centre County would be a great place. You can have some land and a great house with beautiful views, and still be not far from State College! But, what is your definition of "affordadle"? Some people think "affordable" is $250,000 and others think $100,000. Here are a few options:

This link shows you a house for $229,000 on 2.3 acres with 3 bedrooms and 2.5 baths. It has 3239 square feet and is in the town of Reedersburg. Very beautiful area!

This link shows you a beautiful 3 bedroom, 2.5 bath house on 1.72 acres. However, it is not in Centre County. It is in MIfflin county and is not far from Lewistown, or even State College.

This link shows you a 3 bedroom, 2.5 bath home on 4.17 acres in Centre County. It has a Philipsburg adress. It has 2116 square feet and was built in1998. Listed at$194,500.
Although, this home is just right for you! It has 1 acre and as it was listed on the website "a horse lover's dream!" It is ready to move into with 3 bedrooms and 2 baths. It has a riding stable and pasture! It's even in the State College School District w/ a SC adress! Only $179,900! Here's the link:
I hope I helped you and just ask anymore questions if you have them! You can find houses yourself at happyvalleyhomes.org!