Population: 904 · Density: 431.7/mi² · Median household income: $164,167
Typical home value: $1,486,630 · Homeownership: 92.1%
Data as of January 2026. Source: Realtor.com.
The NEW CASTLE, NH real estate market (03854) currently shows 5 active listings, with 3 pending sales. Homes are averaging 43 days on the market before going under contract.
Inventory has increased compared to last year, with 4 more homes available — giving buyers more choice.
Homes are selling faster, averaging 43 days on market compared to 205 days last year.
The median listing price has fallen 20% year-over-year, from $2,999,999 to $2,400,000.
Whether you are buying or selling in NEW CASTLE, NH, SELL123.com can help you save significantly on commission — typically 2% compared to traditional 5% broker fees. Call (240) SELL-123 for a free consultation.
| Zip | City / State | Distance | Listings | Market Value | Median $ | Average $ |
|---|---|---|---|---|---|---|
| 03854 | New Castle, NH 03854 | 0.0 mi | 5 | $9,915,000 | $2,400,000 | $1,983,000 |
| 03904 | Kittery, ME 03904 | 3.1 mi | 20 | $30,336,000 | $1,001,500 | $1,516,800 |
| 03801 | Portsmouth, NH 03801 | 4.3 mi | 98 | $109,236,680 | $828,000 | $1,114,660 |
| 03903 | Eliot, ME 03903 | 6.6 mi | 8 | $10,570,664 | $1,237,000 | $1,321,333 |
| 03909 | York, ME 03909 | 7.3 mi | 40 | $65,819,240 | $1,089,000 | $1,645,481 |
| 03885 | Stratham, NH 03885 | 9.7 mi | 17 | $18,058,012 | $764,950 | $1,062,236 |
| 03824 | Durham, NH 03824 | 10.7 mi | 7 | $6,813,331 | $646,000 | $973,333 |
| 03857 | Newmarket, NH 03857 | 11.7 mi | 9 | $5,561,550 | $634,900 | $617,950 |
| 03908 | South Berwick, ME 03908 | 12.0 mi | 7 | $12,533,500 | $979,000 | $1,790,500 |
| 03856 | Newfields, NH 03856 | 12.6 mi | 5 | $5,624,720 | $1,199,925 | $1,124,944 |
| 03823 | Madbury, NH 03823 | 13.5 mi | 2 | $1,850,000 | $925,000 | $925,000 |
| 03874 | Seabrook, NH 03874 | 14.3 mi | 12 | $19,247,832 | $739,900 | $1,603,986 |
| 03833 | Exeter, NH 03833 | 15.0 mi | 83 | $75,812,034 | $825,000 | $913,398 |
As of January 2026, there are 5 active listings in NEW CASTLE, NH (zip code 03854), compared to 1 the prior year.
The median listing price in NEW CASTLE, NH 03854 is $2,400,000 as of January 2026, a 20% decrease from $2,999,999 the prior year.
Homes in NEW CASTLE, NH 03854 spend an average of 43 days on the market before going under contract, compared to 205 days the prior year.
Based on current inventory and days-on-market data as of January 2026, NEW CASTLE, NH 03854 is currently a Balanced Market. Inventory has increased compared to last year, with 4 more homes available — giving buyers more choice. Homes are selling faster, averaging 43 days on market compared to 205 days last year.
With SELL123.com's maximum 3% commission, sellers in NEW CASTLE, NH 03854 save an estimated $48,000 compared to a typical 5% commission on the median listing price of $2,400,000. Our fee structure: 1% listing + 2% selling broker — no additional buyer or seller fees. Call (240) SELL-123 or email info@SELL123.com for a free consultation.