Interest Rates Assessed by the Division Technical Bulletin 21(R) Have general questions about COVID-19? Call the public hotline! Call the NJ COVID-19 & Poison Center Public Hotline at 1-800-962-1253 or 1-800-222-1222. Trained professionals are standing by to answer your call 24/7 OR visit nj.gov/health. NOTE: Hotline is not to locate testing, to get test results, or for medical advice Savings rates are displayed in terms of APY to indicate the effective annual-interest return, including the compounding of interest, of the course of a single year. $100,000 deposited in a savings or CD account with a 1.20% APY will earn $1,200 in the course of the year, but monthly interest in the first few months may be less than $100 a month The average jumbo loan rate in New Jersey is 4.10%. New Jersey ARM Loan Rates. An adjustable-rate mortgage (ARM) usually offers a lower interest rate for an introductory period of one, three, five, seven or 10 years. When that period ends, the interest rate can change and typically it goes up.