Old Tappan, NJ real estate: the numbers, explained.

Home values in Old Tappan

Zillow Home Value Index (all homes, middle tier, smoothed, seasonally adjusted) for the Zillow region “Old Tappan”, September 30 of each year. Source: Zillow Research.

Zillow’s Home Value Index for Old Tappan was $1,341,154 as of September 30, 2026, up 8% from a year earlier and up 34.7% over five years. Over ten years the index rose 48.9%. ZHVI models a typical home value. It isn’t the price of any specific house.

The NJ Division of Taxation’s 2026 Average Residential Statistics show an average residential sale price of $1,268,357 across 21 sales used in that report. That is a small sample, so treat it as a rough marker. Averages can be pulled up or down by a few sales, which is one reason it can differ from Zillow’s index.

The Census Bureau’s survey puts the median value of owner-occupied homes, as estimated by owners, at $951,300 (2020–2024 average), compared with a Bergen County town median of $606,800.

Old Tappan property taxes

Old Tappan’s 2025 general tax rate was 2.346 per $100 of assessed value, and its effective tax rate was 1.785%, lower than the Bergen County town median of 2.072% and lower than the statewide municipal median of 2.141%. That ranks it #16 lowest of 68 Bergen County municipalities by effective rate. The average residential tax bill was $19,377 on an average assessment of $825,978 across 2,057 residential properties.

Applied to the typical home value of $1,341,154, the effective rate implies roughly $23,940 a year ($1,995 a month) in property tax. The Division publishes the effective rate for comparing towns, not for computing a specific bill, so use it as a ballpark.

What it costs to own vs. rent

For a $1,341,154 home with 20% down ($268,231) and a 30-year fixed loan at 7.18%, Freddie Mac’s national average for the week of November 5, 2026, principal and interest come to about $7,268 a month. With estimated property tax that’s about $9,263, before insurance, any HOA fee and utilities. For comparison, the Census median gross rent in Old Tappan is $3,501.

Run my numbers for Old TappanRent vs buy here

Who lives in Old Tappan

About 6,008 people live in Old Tappan. 94.1% of occupied homes are owner-occupied (county town median 76.8%), so the market is mostly owner-occupied single homes. 72.7% of housing units are single-family detached houses. The median resident age is 44.4, and 76.9% of adults 25 and older hold a bachelor’s degree or higher. Median household income is $205,385, higher than the county town median of $144,212.

The median home in Old Tappan was built in 1986. Newer housing stock usually means fewer legacy issues like buried oil tanks or lead paint, but still inspect roofs, HVAC age and drainage, and check any HOA’s finances.

Commuting from Old Tappan

Workers in Old Tappan average 33.7 minutes each way (those who don’t work from home), longer than the Bergen County town median of 31.4 minutes. 5.9% commute by public transportation, so most commuters drive and 19.5% work from home.

Schools

I don’t republish unofficial school scores. For Old Tappan, start with the New Jersey Department of Education’s School Performance Reports, then confirm the exact school assignment for any address with the district, since some NJ towns send students to regional or neighboring high schools. See how to research NJ schools.

Downtown, food and things to do

The best way to judge Old Tappan’s restaurants, parks and weekend life is in person. Visit on a weeknight and a Saturday morning, check the town recreation calendar and walk the blocks you’d live on. My town scouting checklist shows what to look for.

My take for buyers, sellers and renters

• Buyers: a below-county-median effective tax rate stretches your budget further here than in many Bergen towns. Compare with the town comparison tool.
• Sellers: values are up 34.7% in five years, so many owners have significant equity. See your number in the seller net sheet.
• Low turnover: about 21 residential sales were in the state’s 2026 report, so good listings can be scarce. Set alerts and be ready to act.

Nearby towns at a similar price