What is the population of Loudon?

The population of Loudon, NH is 5,697.

Where is Loudon located?

Loudon, NH is located at latitude 43.2856400 and longitude -71.4672900. It is in United States.

What is the area of Loudon?

The area of Loudon, NH is 47.5 km².

What is the elevation of Loudon?

Loudon, NH has an elevation of 116 meters (381 feet) above sea level.

What time zone is Loudon in?

Loudon, NH is in the America/New_York time zone.

What state is Loudon in?

Loudon is in the state of New Hampshire, United States.

What county is Loudon, NH in?

Loudon is in Merrimack County, New Hampshire.

How has the population of Loudon changed?

The population of Loudon, NH has increased from 5,317 (2010) to 5,697 (2020), a change of 7.1%.

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Loudon, New Hampshire

Loudon: town of the United States

About

Loudon is a town located in the county of Merrimack in the U.S. state of New Hampshire. Its population at the 2010 census was 5,317 and a population density of 112 people per km². After 10 years in 2020 city had an estimated population of 5,697 inhabitants.

The town was created 253 years ago in 1772.

Loudon locator map — Location of Loudon on New Hampshire map.

Quick Facts about Loudon

Population	5,697 (2020)
Country	United States of America
State	New Hampshire (United States)
County	Merrimack County
Postal code	03307
Phone Area Codes	603
Area	47.5 km²
Latitude & Longitude	43.2856,-71.4673
Altitude	371 feet / 113 meters
Establishment	January 01, 1773 (253 years ago)
Time Zone	America/New_York
Local time	19:04:48 (22nd April 2026)
Density	120 Pop. per km² as of 2020
Population growth	6.67% (2010-2020)
Weather	49℉ Slight Chance Rain Showers then Mostly Cloudy 7-days weather

LoudonCrossroadsCrop image

Geography

Loudon is located at 43°17'8"N 71°28'2"W (43.2856400, -71.4672900).

Loudon map

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Weather

49°F

Slight Chance Rain Showers then Mostly Cloudy

0 to 5 mph SW Wednesday

A slight chance of rain showers before 8am. Mostly cloudy, with a high near 49.

7-Day Forecast

Official website of Loudon

Official Website

Demographics

The population of Loudon increased by 6.67% in 10 years.

Year	Population	% Change	Method
2010	5,317	-	census
2011	5,288	-0.55%	estimation process
2012	5,303	0.28%	estimation process
2013	5,322	0.36%	estimation process
2014	5,362	0.75%	estimation process
2015	5,425	1.16%	estimation process
2016	5,496	1.29%	estimation process
2017	5,509	0.24%	estimation process
2018	5,590	1.45%	estimation process
2019	5,634	0.78%	estimation process
2020	5,697	1.11%	estimation process

Loudon zip code is 03307. County name: Merrimack, County fips: 33013

Nearby Schools and Colleges

Schools and campuses linked to Loudon, NH. Select a name to open its map and contact details.

Code	Name	City	ZIP
183099	NHTI-Concord's Community College	Concord (NH)	03301-7412

Nearby Transit Stations (32)

Rail and bus stations connected to Loudon, NH. Select a station to open its map and address details.

Code	Name	Address	Type
CNH	Concord, New Hampshire	30 Stickney Ave.	BUS
TLT	Tilton, New Hampshire	I-93 and US hwy 3	BUS
MHT	Manchester, New Hampshire	119 Canal St.	BUS
NHN	New Hampton, New Hampshire	325 Route 104	BUS
DHM	Durham–UNH station	3 Depot Road	RAIL

Nearby Post Offices

Closest post offices linked to Loudon.

Post Office Name	City	ZIP
Concord Annex Post Office	Concord (NH)	03301

Other places with the same name (2)

Loudon, Tennessee human settlement in Loudon County, Tennessee, United States of America with a population of 6,009 people.
Loudon, Ohio village in Ashland and Holmes counties in Ohio, United States with a population of 2,040 people.

Other cities in Merrimack County

Cities, towns, neighborhoods & other populated places in Merrimack County , NH. (more)

City Name	Population	Title
Concord	43,924	The capital of New Hampshire.
East Concord	42,605	A census-designated place in Merrimack County, New Hampshire.
Hooksett	14,703	City in Merrimack County, New Hampshire, United States of America
Newmarket	9,207	Town in New Hampshire
Franklin	8,753	City in Merrimack County, New Hampshire, USA
Bow Bog	8,381	City in Merrimack County, New Hampshire, United States of America
Bow	8,063	Town in Merrimack County, New Hampshire, United States
Pembroke	7,252	Town in New Hampshire, United States
Hopkinton	5,827	Town in Merrimack County, New Hampshire
South Hooksett	5,418	Census-designated place in Merrimack County, New Hampshire
Suncook	5,379	Census-designated place in Merrimack County, New Hampshire
Henniker	5,006	Town in New Hampshire
Northfield	4,979	Town in Merrimack County, New Hampshire
Epsom	4,824	New Hampshire
Allenstown	4,488	Town in New Hampshire
New London	4,268	Town in Merrimack County, New Hampshire, United States

Distance to Other Cities

Loudon distances to largest New Hampshire cities