Griggstown vs Rocky Hill

A side-by-side comparison of Griggstown and Rocky Hill: population, income, housing, and more.

Griggstown and Rocky Hill are places in New Jersey. This page compares them across population, income, housing, education, commuting, and how each has changed since 2019.

Griggstown has the higher population (928 vs 814 in Rocky Hill). Griggstown has the higher median household income ($207,542 vs $127,344 in Rocky Hill). Rocky Hill has the higher median home value ($608,200 vs $560,100 in Griggstown).

Population, income & housing

	Griggstown	Rocky Hill
Population	928	814
Median age	55.7 yrs	42.8 yrs
Median household income	$207,542	$127,344
Median home value	$560,100	$608,200
Median gross rent	—	$1,660
Housing units	421	319
Homeownership rate	100.0%	75.9%
Bachelor's degree or higher	49.1%	72.4%
Unemployment rate	8.0%	6.1%

Trends (ACS 5-year, 2019–2023)

	Griggstown	Rocky Hill
Population	611 → 928 (+51.9%)	636 → 814 (+28.0%)
Median household income	$104,135 → $207,542 (+99.3%)	$111,688 → $127,344 (+14.0%)
Median home value	$364,400 → $560,100 (+53.7%)	$521,500 → $608,200 (+16.6%)
Median gross rent	—	$1,833 → $1,660 (-9.4%)

Griggstown

Population

611928

Median household income

$104,135$207,542

Median home value

$364,400$560,100

Rocky Hill

Population

636814

Median household income

$111,688$127,344

Median home value

$521,500$608,200

Median gross rent

$1,833$1,660

Age & race/ethnicity

Age distribution (share)

	Griggstown	Rocky Hill
Under 5	1.6%	7.0%
5 to 17	6.9%	13.6%
18 to 24	14.9%	12.0%
25 to 34	5.0%	8.6%
35 to 44	2.4%	11.7%
45 to 54	5.5%	13.8%
55 to 64	40.4%	15.7%
65 to 74	14.7%	11.2%
75 and over	8.7%	6.4%

Race & ethnicity (share)

	Griggstown	Rocky Hill
White (non-Hispanic)	83.0%	80.7%
Black or African American	1.7%	0.9%
American Indian & Alaska Native	0.0%	0.0%
Asian	10.2%	4.1%
Native Hawaiian & Pacific Islander	0.0%	0.0%
Some other race	0.0%	1.2%
Two or more races	5.1%	4.7%
Hispanic or Latino	0.0%	8.5%

Educational attainment (age 25+)

Share of adults 25+

	Griggstown	Rocky Hill
No high school diploma	5.1%	0.7%
High school graduate	13.9%	12.4%
Some college or associate's	31.9%	14.4%
Bachelor's degree	38.0%	36.9%
Graduate or professional degree	11.1%	35.6%

Commute to work

How workers get to work (share)

	Griggstown	Rocky Hill
Drove alone	44.8%	62.9%
Carpooled	26.3%	6.5%
Public transit	0.0%	1.2%
Walked	0.0%	1.4%
Bicycle	0.0%	0.0%
Worked from home	26.8%	27.3%
Other means	2.1%	0.7%

Housing

Units in structure (share)

	Griggstown	Rocky Hill
1-unit, detached	100.0%	72.4%
1-unit, attached	0.0%	7.5%
2 to 4 units	0.0%	7.2%
5 to 19 units	0.0%	12.9%
20 or more units	0.0%	0.0%
Mobile home & other	0.0%	0.0%

Poverty & households

	Griggstown	Rocky Hill
Poverty rate	0.2%	4.3%
Average household size	2.25	2.51
Mean commute (minutes)	27	25
Median year structure built	1950	1955