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Loudon ZIP Code List — Merrimack County, NH

There is one unique ZIP code in Loudon, New Hampshire and it is 03307. Area code: 603.
1
ZIP codes
46.96
sq mi land
0.59
sq mi water
603
area code
Loudon, NH ZIP code map
ZIP codes for Loudon, NH (1)
ZIP code City County Map
03307 Loudon Merrimack View map

Demographics & statistics

5,638
Population
51.3
Median age
$77,473
Median household income
$38,192
Per capita income
$283,200
Median home value
$1,248
Median monthly rent
86.1%
Home ownership
9.9%
Poverty rate
2.6%
Unemployment
2,160
Housing units
24.7%
Bachelor's or higher

Age distribution

Male Female
59
Under 5
61
22
5–9
23
180
10–14
186
202
15–19
209
73
20–24
76
251
25–34
259
291
35–44
299
407
45–54
419
235
55–59
243
434
60–64
446
428
65–74
441
156
75–84
161
38
85+
39
← Male
Female →

Age summary

GroupCount%
Under 1880414.3%
18 and over4,83485.7%
65 and over1,26322.4%
Median age51.3 years

Race & ethnicity

White 97.1%
Two or more races 2.5%
Asian 0.4%
GroupCount%
White5,47397.1%
Two or more races1412.5%
Asian240.4%

Household income

$10k–$15k 3.4%
$15k–$25k 18.9%
$25k–$35k 2.3%
$35k–$50k 9.8%
$50k–$75k 13.7%
$75k–$100k 11.7%
$100k–$150k 18.7%
$150k–$200k 12.4%
$200k+ 9.1%
Range% of households
$10k–$15k3.4%
$15k–$25k18.9%
$25k–$35k2.3%
$35k–$50k9.8%
$50k–$75k13.7%
$75k–$100k11.7%
$100k–$150k18.7%
$150k–$200k12.4%
$200k+9.1%
Median income$77,473

Housing

Home values

Under $50k 2.5%
$50k–$100k 12.6%
$100k–$150k 11.5%
$150k–$200k 6.2%
$200k–$300k 22.3%
$300k–$500k 38.6%
$500k–$1M 6.3%

Housing overview

MetricValue
Median home value$283,200
Median rent / month$1,248
Owner occupied86.1%
Renter occupied13.9%
Vacant7.6%
Single-family detached79.1%
Large apartment buildings3.8%
Mobile homes14.4%
Median rooms6.0
Avg household size (owned)2.54

Year built

Era%
2020 or later0.0%
2010–20199.4%
2000–200922.3%
1990–19999.8%
1980–198918.1%
1970–197913.6%
1960–19694.9%
1950–19596.1%
1940–19491.3%
1939 or earlier14.6%

Bedrooms

Size% of units
No bedroom (studio)1.5%
1 bedroom7.0%
2 bedrooms23.8%
3 bedrooms52.4%
4 bedrooms12.5%
5+ bedrooms2.8%

Vehicles per household

Vehicles% of households
No vehicle2.4%
1 vehicle14.9%
2 vehicles46.2%
3 or more36.5%

Heating fuel

Fuel type%
Utility gas8.1%
Electricity1.5%
Propane / LP gas24.3%
Fuel oil42.3%
Wood16.9%

Households & families

Household typeCount%
Married-couple family1,56168.1%
Cohabiting couple26911.7%
Male householder, no spouse1406.1%
Female householder, no spouse32114.0%
Households with children under 1849321.5%
Households with seniors (65+)84436.8%
Average household size2.46

Marital status

StatusMaleFemale
Never married25.3%21.1%
Married62.7%62.7%
Separated1.7%0.7%
Widowed1.6%6.3%
Divorced8.7%9.2%

Education

Less than 9th grade 0.5%
Some HS, no diploma 7.3%
HS graduate 39.8%
Some college, no degree 14.5%
Associate's degree 13.1%
Bachelor's degree 17.4%
Graduate / professional 7.3%
Metric%
HS diploma or higher92.1%
Bachelor's or higher24.7%

School enrollment (ages 3–17)

TypeCount%
Nursery / preschool333.6%
Kindergarten273.0%
Elementary school39743.7%
High school28231.0%
College / grad school17018.7%

Employment

Industry of employment

Education & healthcare 17.9%
Retail trade 14.6%
Other services 12.3%
Construction 11.6%
Manufacturing 9.9%
Arts, food & hospitality 6.7%
Professional & management 6.6%
Wholesale trade 5.8%
Finance & real estate 5.8%
Public administration 5.7%
Transportation & utilities 2.1%
Agriculture & mining 0.5%
Information 0.5%

Occupation

Category%
Management, business & arts33.4%
Service17.5%
Sales & office21.5%
Natural resources & construction16.4%
Production & transportation11.2%

Employment type

Type%
Private sector82.4%
Government11.3%
Self-employed6.3%
Unpaid family workers0.0%

Commute

Method%
Drive alone87.2%
Carpool1.8%
Public transit0.0%
Walk0.0%
Other means2.3%
Avg commute (minutes)31.3

Poverty

All people 9.9%
Under 18 years 24.0%
18 and over 7.6%
Married-couple families 0.0%
Female-led households 15.4%

Income support

Source% of households
Social Security50.9%
Retirement income32.4%
Supplemental Security5.5%
Cash public assistance5.2%
Food stamps / SNAP11.1%

Health indicators

Condition%
High blood pressure29.3%
High cholesterol29.1%
Heart disease5.2%
Stroke2.4%
Asthma11.0%
Arthritis26.3%
Kidney disease2.3%
Pulmonary disease6.0%
Cancer6.5%
Behavior / access%
Binge drinking18.8%
No physical activity17.6%
Less than 7 hrs sleep33.0%
Fair or poor health11.3%
Poor mental health15.0%
Poor physical health9.6%
No health insurance10.4%
Visited doctor (checkup)73.2%
Visited dentist69.2%
Cholesterol screening91.1%
Teeth loss11.4%

Veterans & disability

VeteransCount%
Civilian veterans4379.0%
Disability%
Any disability16.2%
Under 1818.2%
18–64 years10.4%
65 and over31.4%

Health insurance coverage

Type%
Private insurance68.2%
Public insurance45.9%
Uninsured under 190.6%

Language & origin

Language spoken at home (age 5+)

LanguageCount%
English only5,51897.9%
Spanish00.0%
Other Indo-European00.0%
Asian & Pacific Islander00.0%
Other languages00.0%

Place of birth & citizenship

OriginCount%
Native born (US)5,55598.5%
Born in same state5,49197.4%
Born in different state3,56663.2%
Foreign born641.1%
Naturalized citizen831.5%
Not a US citizen83100.0%

Ancestry

AncestryCount%
French1,41125%
Italian95016.8%
German5089%
AncestryCount%
Arab3957%
Polish370.7%
English170.3%

Technology access

Metric% of households
Computer access40.6%
Internet access99.0%

Source: U.S. Census Bureau, American Community Survey 2025 estimates.

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