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)
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
| Group | Count | % |
|---|---|---|
| Under 18 | 804 | 14.3% |
| 18 and over | 4,834 | 85.7% |
| 65 and over | 1,263 | 22.4% |
| Median age | 51.3 years | |
Race & ethnicity
White
97.1%
Two or more races
2.5%
Asian
0.4%
| Group | Count | % |
|---|---|---|
| White | 5,473 | 97.1% |
| Two or more races | 141 | 2.5% |
| Asian | 24 | 0.4% |
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–$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% |
| 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
| Metric | Value |
|---|---|
| Median home value | $283,200 |
| Median rent / month | $1,248 |
| Owner occupied | 86.1% |
| Renter occupied | 13.9% |
| Vacant | 7.6% |
| Single-family detached | 79.1% |
| Large apartment buildings | 3.8% |
| Mobile homes | 14.4% |
| Median rooms | 6.0 |
| Avg household size (owned) | 2.54 |
Year built
| Era | % |
|---|---|
| 2020 or later | 0.0% |
| 2010–2019 | 9.4% |
| 2000–2009 | 22.3% |
| 1990–1999 | 9.8% |
| 1980–1989 | 18.1% |
| 1970–1979 | 13.6% |
| 1960–1969 | 4.9% |
| 1950–1959 | 6.1% |
| 1940–1949 | 1.3% |
| 1939 or earlier | 14.6% |
Bedrooms
| Size | % of units |
|---|---|
| No bedroom (studio) | 1.5% |
| 1 bedroom | 7.0% |
| 2 bedrooms | 23.8% |
| 3 bedrooms | 52.4% |
| 4 bedrooms | 12.5% |
| 5+ bedrooms | 2.8% |
Vehicles per household
| Vehicles | % of households |
|---|---|
| No vehicle | 2.4% |
| 1 vehicle | 14.9% |
| 2 vehicles | 46.2% |
| 3 or more | 36.5% |
Heating fuel
| Fuel type | % |
|---|---|
| Utility gas | 8.1% |
| Electricity | 1.5% |
| Propane / LP gas | 24.3% |
| Fuel oil | 42.3% |
| Wood | 16.9% |
Households & families
| Household type | Count | % |
|---|---|---|
| Married-couple family | 1,561 | 68.1% |
| Cohabiting couple | 269 | 11.7% |
| Male householder, no spouse | 140 | 6.1% |
| Female householder, no spouse | 321 | 14.0% |
| Households with children under 18 | 493 | 21.5% |
| Households with seniors (65+) | 844 | 36.8% |
| Average household size | 2.46 | |
Marital status
| Status | Male | Female |
|---|---|---|
| Never married | 25.3% | 21.1% |
| Married | 62.7% | 62.7% |
| Separated | 1.7% | 0.7% |
| Widowed | 1.6% | 6.3% |
| Divorced | 8.7% | 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 higher | 92.1% |
| Bachelor's or higher | 24.7% |
School enrollment (ages 3–17)
| Type | Count | % |
|---|---|---|
| Nursery / preschool | 33 | 3.6% |
| Kindergarten | 27 | 3.0% |
| Elementary school | 397 | 43.7% |
| High school | 282 | 31.0% |
| College / grad school | 170 | 18.7% |
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 & arts | 33.4% |
| Service | 17.5% |
| Sales & office | 21.5% |
| Natural resources & construction | 16.4% |
| Production & transportation | 11.2% |
Employment type
| Type | % |
|---|---|
| Private sector | 82.4% |
| Government | 11.3% |
| Self-employed | 6.3% |
| Unpaid family workers | 0.0% |
Commute
| Method | % |
|---|---|
| Drive alone | 87.2% |
| Carpool | 1.8% |
| Public transit | 0.0% |
| Walk | 0.0% |
| Other means | 2.3% |
| 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 Security | 50.9% |
| Retirement income | 32.4% |
| Supplemental Security | 5.5% |
| Cash public assistance | 5.2% |
| Food stamps / SNAP | 11.1% |
Health indicators
| Condition | % |
|---|---|
| High blood pressure | 29.3% |
| High cholesterol | 29.1% |
| Heart disease | 5.2% |
| Stroke | 2.4% |
| Asthma | 11.0% |
| Arthritis | 26.3% |
| Kidney disease | 2.3% |
| Pulmonary disease | 6.0% |
| Cancer | 6.5% |
| Behavior / access | % |
|---|---|
| Binge drinking | 18.8% |
| No physical activity | 17.6% |
| Less than 7 hrs sleep | 33.0% |
| Fair or poor health | 11.3% |
| Poor mental health | 15.0% |
| Poor physical health | 9.6% |
| No health insurance | 10.4% |
| Visited doctor (checkup) | 73.2% |
| Visited dentist | 69.2% |
| Cholesterol screening | 91.1% |
| Teeth loss | 11.4% |
Veterans & disability
| Veterans | Count | % |
|---|---|---|
| Civilian veterans | 437 | 9.0% |
| Disability | % |
|---|---|
| Any disability | 16.2% |
| Under 18 | 18.2% |
| 18–64 years | 10.4% |
| 65 and over | 31.4% |
Health insurance coverage
| Type | % |
|---|---|
| Private insurance | 68.2% |
| Public insurance | 45.9% |
| Uninsured under 19 | 0.6% |
Language & origin
Language spoken at home (age 5+)
| Language | Count | % |
|---|---|---|
| English only | 5,518 | 97.9% |
| Spanish | 0 | 0.0% |
| Other Indo-European | 0 | 0.0% |
| Asian & Pacific Islander | 0 | 0.0% |
| Other languages | 0 | 0.0% |
Place of birth & citizenship
| Origin | Count | % |
|---|---|---|
| Native born (US) | 5,555 | 98.5% |
| Born in same state | 5,491 | 97.4% |
| Born in different state | 3,566 | 63.2% |
| Foreign born | 64 | 1.1% |
| Naturalized citizen | 83 | 1.5% |
| Not a US citizen | 83 | 100.0% |
Ancestry
| Ancestry | Count | % |
|---|---|---|
| French | 1,411 | 25% |
| Italian | 950 | 16.8% |
| German | 508 | 9% |
| Ancestry | Count | % |
|---|---|---|
| Arab | 395 | 7% |
| Polish | 37 | 0.7% |
| English | 17 | 0.3% |
Technology access
| Metric | % of households |
|---|---|
| Computer access | 40.6% |
| Internet access | 99.0% |
Source: U.S. Census Bureau, American Community Survey 2025 estimates.