One of the primary considerations in mortgage lending in credit. The credit score is used to assess risk. You will need a mid score of 620 to qualify for most mortgages. The better the score, the better the interest rate you can receive, with the exception of FHA or VA loans. The rate for those loans remain constant regardless of higher scores.
It might be in your best financial interest if you sat down with someone that had a knowledge of credit and methods to improve crdit scores. An improved score will benefit you in a variety of ways, i.e. reduced premiums on auto insurance, more employment opportunities (many employers check an applicant's credit before hiring), better interest rates on installments loans, etc.
I hope this is helpful.