| | Jumbo mortgages are not so different from standard mortgages but there are a few key things that are worth looking in to. Jumbo Mortgage Loans A jumbo mortgage loan is a loan taken for property that is high-priced.. In Colorado, as in most of the U.S., a jumbo mortgage loan is any mortgage that exceeds $417,000 - the limit set by Fannie Mae and Freddie Mac for conforming loans |