Carroll County

Carroll County sits at a 3.34% cap rate on a $508,169 median purchase price, with gross rent of $2,178.89 per month against a mortgage payment of $2,664 at 6.85%. The rent-to-price ratio of 0.0515 is thin, and the model spits out negative $1,248 per month in cash flow with a cash-on-cash return of -12.81%. Those numbers place Carroll squarely on the appreciation end of the spectrum, not the cash-flow end. The 4.21% year-over-year price appreciation and an appreciation score of 84 out of 100 confirm where the market's edge lies. An affordability index of 27 and a national percentile rank of 30 out of 1,000 counties reinforce the same conclusion: this is an expensive market where renters are not paying enough to cover carry costs at today's rates, but owners have been rewarded on paper.

The investor this market suits is someone buying for long-term appreciation who can absorb negative monthly cash flow while the asset compounds. The 84 appreciation score is the highest data point in Carroll's favor, and the 4.21% annual price gain on a $508,000 asset is roughly $21,400 per year in equity growth before any principal paydown. A cash-flow buyer running a conventional 20% down ($101,634) will lose ground every month at current rates and rents, full stop. A value-add operator targeting forced appreciation through renovation or ADU conversion could change the unit economics, but the base-case rents need to move substantially to flip the sign on that -$1,248 monthly figure. This market does not suit a buyer who needs the property to service itself from day one.

The tax and insurance picture in Carroll County deserves serious attention on the underwrite. The combined monthly tax and insurance load is $1,021, which is already baked into the $763 estimated expenses figure but is worth isolating because it is not a variable you can negotiate away. At a 2.18% state-average effective property tax rate, New Hampshire's rate is very high and belongs on its own line in any model you build. That $11,078 annual tax bill alone eats more than 42% of gross annual rent collected. Add $1,169 in annual insurance and you are spending $12,247 per year before you touch mortgage principal, interest, vacancy reserves, maintenance, or management. The caveat that applies here: 2.18% is a state-average estimate sourced from Tax Foundation 2024 data, and actual Carroll County or township-level rates may differ materially, so verify the specific parcel's tax bill before closing any analysis.

The comparison to neighboring counties clarifies Carroll's positioning. Rockingham County carries a higher median price ($599,250) with a lower rent-to-price ratio (0.0473), making it worse on cash flow with a comparable overall score of 54. Hillsborough ($503,490 median, 0.0490 ratio, score 55) and Merrimack ($470,918, 0.0495, score 56) are both cheaper to enter with slightly better yield ratios and marginally higher overall scores, which makes them more defensible for an investor who needs tighter carry costs. Strafford County ($485,977, 0.0513 ratio, score 56) is the closest match to Carroll on yield but comes in cheaper by roughly $22,000 at the median. Coos County at a $258,134 median is in a different conversation entirely, priced for a different risk profile and investor type. Within this peer group, Carroll's only clear advantage over its neighbors is the appreciation score, which at 84 stands apart if the data behind that score reflects structural demand from the Lakes Region and White Mountains tourism economy and second-home demand. An investor should choose Carroll over its neighbors specifically when the thesis is price appreciation in a supply-constrained recreational market and when negative carry is acceptable because the equity trajectory justifies it. If the thesis is any version of "this property pays for itself," one of the less expensive neighboring counties is the more honest choice.

The concentration risk in a county of 50,679 people tied to seasonal and tourism-adjacent demand is real even though vacancy statistics are not in the provided data. A small population base means the rental demand pool is narrower, tenant turnover in a seasonal market can extend vacancy windows, and any softening in tourism or second-home buyer sentiment hits local employment and rental demand simultaneously. That correlation between the economic base and rental demand is worth stress-testing before committing capital.