Postal Codes in New Brunswick
New Brunswick's postal codes cover Canada's only officially bilingual province, home to around 830,000 residents split between English and French speakers, particularly in the northern and eastern regions where Acadian French heritage runs deep. Unlike many Canadian provinces, New Brunswick lacks a single dominant city, with population spread fairly evenly across three mid-size urban centers.
How Postal Codes Are Organized Across the Province
New Brunswick's postal codes use the leading letter "E" under Canada's national alphanumeric system. Moncton's codes generally start with E1, Saint John uses codes starting with E2, and Fredericton, the provincial capital, carries codes starting with E3.
New Brunswick's Major Cities by Population
The chart below shows how population splits fairly evenly across New Brunswick's three main cities, without one urban center dominating the way many other provinces have.
Moncton's postal codes cover New Brunswick's largest city, a historic railway crossroads that has grown into a genuinely bilingual commercial hub serving both English and French-speaking communities across the Maritimes. Saint John, along the Bay of Fundy, carries a strong industrial port heritage, home to one of the largest oil refineries in Canada. Fredericton, the provincial capital, blends government employment with a significant university presence. For a broader comparison, our full ZIP and postal code directory shows how New Brunswick's system fits alongside other regions we cover.
Acadian Heritage and Northern New Brunswick
Northern and eastern New Brunswick are home to a significant Acadian French-speaking population, descendants of early French settlers who trace a distinct cultural identity separate from Quebec's francophone population. Postal codes in this region reflect communities where French remains the primary language of daily life, alongside a fishing and forestry-based economy along the Gulf of St. Lawrence coastline.
The Bay of Fundy and Southern New Brunswick
Southern New Brunswick, anchored by Saint John, sits along the Bay of Fundy, famous for having the highest tides in the world, a natural phenomenon that draws significant tourism. This region borders Maine to the west, and postal codes near the border reflect cross-border economic ties that have existed for generations between the two regions.
Why Postal Codes Matter Beyond Mail
In New Brunswick, postal codes carry particular significance given the province's bilingual status - many businesses and government services use postal-code-level data to determine appropriate language service delivery across English, French, and bilingual regions. The forestry and fishing industries, historically significant to the provincial economy, rely on postal codes for coordinating operations across the province's many small coastal and rural communities.
Finding the Right Postal Code
Use the list below to browse New Brunswick's postal codes by city, region, or population - sorted so the most populous areas surface first. Each entry links through to a detailed page with additional demographic data. If you're trying to identify the postal code for a specific address rather than browsing by city, the search tool at the top of this page will get you there faster than scrolling through the full list.
Frequently Asked Questions
How many postal codes does New Brunswick have?
New Brunswick has thousands of postal codes, spread fairly evenly across its three main cities and many smaller coastal and rural communities.
What letter do New Brunswick postal codes start with?
New Brunswick postal codes all begin with the letter E, part of Canada's national alphanumeric postal code system.
Why is New Brunswick officially bilingual?
New Brunswick is Canada's only officially bilingual province, reflecting its significant Acadian French-speaking population alongside its English-speaking majority.
Can I look up a New Brunswick postal code by city name?
Yes, use the search tool on this page or browse the full list below, which is organized by city and sorted by population.
Whether you're relocating to Moncton or Saint John, researching Acadian coastal property in the north, or simply trying to pin down the right postal code for a specific New Brunswick address, the data below covers every corner of the province.