Hillsborough County, New Hampshire — 2026 Loan Limits & Market Data

Hillsborough County is a mid-sized county in New Hampshire with a population of approximately 430,462 residents spread across 876 square miles. The county is a suburban area with a moderate population density of 491 residents per square mile, which shapes both the local housing market and the types of properties available to buyers.

For 2026, the conforming loan limit in Hillsborough County is $832,750 for a single-family home, which is the national baseline. FHA borrowers can access loans up to $589,950 for a one-unit property. These limits determine the maximum loan amount available through conventional and government-backed financing before buyers would need to seek jumbo loans, which carry different qualification requirements and typically require higher down payments.

Hillsborough County's suburban and semi-rural character means buyers can find a range of property types, from newer subdivisions to established neighborhoods and larger-lot properties. The county includes 34 ZIP codes with varying market conditions. Reviewing specific ZIP codes can reveal differences in median prices, available inventory, and how quickly homes are selling across different parts of the county.