This page covers what is specific to Lambertville: local employers, seasonal hiring, and where to get help. For the statewide rules, see the RetireReady NJ requirements and deadlines.
ZIP codes with a Lambertville mailing address had 252 business locations in 2023, with about 2,004 people on payroll in the March pay period.
At least 41 of the 252 locations had 10 or more employees on site, the headcount at which RetireReady NJ starts to apply. The law counts all of an employer's New Jersey employees, not one location, so treat this as a local indicator.
The most common types of business in these ZIP codes are professional, scientific and technical services (48 locations), retail trade (33 locations) and accommodation and food services (32 locations). Across Hunterdon County, the largest industry by employment is health care and social assistance (7,924 jobs), and private leisure and hospitality employment ran from 4,125 in February 2024 to 4,980 in June 2024.
40 of the 252 business locations in Lambertville's ZIP codes are in accommodation and food services or arts, entertainment and recreation, the leisure and hospitality industries where staffing levels tend to change with the season. New Jersey counts employees under N.J.S.A. 43:23-14. The rule reads: “at no time during the previous calendar year employed fewer than 10 employees in the State”. If your Lambertville business's headcount rises and falls during the year, that wording decides whether you meet the threshold, so confirm your status with RetireReady NJ.
Free one-on-one advising for Lambertville businesses is available from the NJSBDC at The College of New Jersey (TCNJ), the NJSBDC office at The College of New Jersey, serving Hunterdon, Somerset, Middlesex and Mercer counties.
Local business network for Lambertville: Greater Lambertville Chamber of Commerce.
RetireReady NJ employer assistance: 855-929-4387.
New Jersey lowered the RetireReady NJ threshold from 25 employees to 10 with a law signed in January 2026 (effective April 1, 2026). If your business has 10 or more New Jersey employees, has operated for at least two years, and offers no qualified retirement plan, you must register or certify an exemption. Upcoming deadlines: 20–24 employees by December 1, 2026; 10–19 employees by February 17, 2027.
Book a free 15-minute compliance audit. We'll show your exact requirement, your real exposure, and whether your own plan saves you money.