How long do people stay in their homes in Mountainside Borough, NJ?

Name: How long people stay in Mountainside Borough, NJ, 2020–2024
Creator: US Census Bureau
License: https://www.census.gov/data/developers/about/terms-of-service.html

15.2% (±6.4 points) of households in Mountainside Borough, NJ moved into their current home in 2020 or later (2020–2024 American Community Survey).

28.4% have lived in it since before 2000.

Figures last updated on November 12, 2026.

Moved in 2020 or later: 15.2% (±6.4 points)
Since before 2000: 28.4%

When households in Mountainside Borough moved in

Occupied housing units by year the householder moved in, 2020–2024
Moved in	Mountainside Borough	Union County	New Jersey	United States
2023 or later	4.4% (±4.0 points)	3.7%	3.6%	4.6%
2020 to 2022	10.8% (±5.0 points)	18.7%	17.6%	20.2%
2010 to 2019	40.3% (±9.1 points)	39.4%	39.0%	39.6%
2000 to 2009	16.1% (±5.8 points)	17.8%	18.0%	16.4%
1990 to 1999	10.6% (±4.6 points)	9.3%	10.7%	9.6%
1989 or earlier	17.8% (±5.7 points)	11.2%	11.1%	9.5%

A high share of recent movers usually means more renting households and more turnover; a high share of long-time residents usually means more owners who have stayed.

In Mountainside Borough, the share of households that moved in since 2020 is lower than in Union County (22.4%).

It is not measurably different from New Jersey (21.2%).

It is lower than the national figure (24.8%).

Households that moved in since 2020 in places near Mountainside Borough

Nearest places with a published estimate, compared with Mountainside Borough
Place	Distance	Households that moved in since 2020	Compared with this place
Mountainside Borough	—	15.2% (±6.4 points)	—
Springfield Township (Union County)	1.8 mi	15.5% (±3.4 points)	Not measurably different
Westfield Town	2.2 mi	19.6% (±2.7 points)	Not measurably different
Summit	2.4 mi	24.8% (±3.9 points)	Higher
New Providence Borough	2.7 mi	19.1% (±3.9 points)	Not measurably different
Garwood Borough	2.8 mi	21.7% (±8.0 points)	Not measurably different
Fanwood Borough	3.0 mi	20.4% (±5.7 points)	Not measurably different
Springfield	3.0 mi	11.9% (±17.1 points)	Not measurably different
Cranford	3.3 mi	33.0% (±12.6 points)	Higher

Nearby places with a measurably higher figure: Summit, NJ (24.8%), Cranford, NJ (33.0%).

Distance is measured in a straight line between the Census Bureau’s internal points for each place.

Households that moved in since 2020 across Union County, place by place

Rank	Place	Households that moved in since 2020
14 (tie)	Berkeley Heights Township	19.1% (±5.2 points)
14 (tie)	New Providence Borough	19.1% (±3.9 points)
16	Linden	18.8% (±2.7 points)
17	Clark Township	17.8% (±4.1 points)
18	Scotch Plains Township	16.8% (±4.2 points)
19	Springfield Township (Union County)	15.5% (±3.4 points)
20	Mountainside Borough	15.2% (±6.4 points)
21	Kenilworth Borough	15.0% (±6.2 points)

Showing 8 of 21 places in Union County, ranked from highest to lowest.

Survey years: 2020–2024 (American Community Survey 5-year estimates).

Margins of error are at the 90% confidence level.

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Questions about Mountainside Borough

How often do people move in Mountainside Borough?

15.2% of households in Mountainside Borough, NJ moved into their home in 2020 or later (2020–2024 American Community Survey).

How many long-time residents does Mountainside Borough have?

28.4% of households in Mountainside Borough have lived in their home since 1999 or earlier.

Sources

Selected Housing Characteristics (DP04), 2020–2024 ACS 5-year estimates — Mountainside borough, Union County, New Jersey

To check these figures in the Census Bureau’s own API, request the variables below from the 2024 ACS 5-year data profile (acs/acs5/profile) for Mountainside borough, Union County, New Jersey (county subdivision:48510, in state:34 county:039).

Each estimate (E or PE) has a margin of error beside it (M or PM).

The API needs a free key.

Request a Census API key.

DP04_0051PE, DP04_0051PM, DP04_0052PE, DP04_0052PM, DP04_0053PE, DP04_0053PM, DP04_0054PE, DP04_0054PM, DP04_0055PE, DP04_0055PM, DP04_0056PE, DP04_0056PM

This product uses the Census Bureau Data API but is not endorsed or certified by the Census Bureau.

Figures are published by the US Census Bureau, HUD, the Bureau of Labor Statistics and the FBI; Seayora reproduces them and does not adjust them, except where a sentence says it compares dollar figures after inflation. They describe the whole place, not any one building or street, and are not an appraisal, a rent determination, a tax bill, a safety rating or legal advice.