03823 ZIP Code — Madbury, NH

Strafford County, New Hampshire

ZIP code 03823 is located in Madbury, New Hampshire, within Strafford County. It covers approximately 11.65 square miles and serves a population of 2,213 residents. This is a standard ZIP code in the Eastern (ET) timezone, served by area code 603.

About ZIP code 03823

The housing stock consists of predominantly single-family detached homes. Most homes were built in the 1980s, giving the area an established character. Median home value is $456,500. Owner-occupancy is high at 81%, well above the national average.

Median household income is $165,583. The poverty rate of 4% is below the national average.

The dominant occupation class is management, business, and professional, with education and healthcare as the leading industry. The average commute of 27 minutes is near the national average.

Educational attainment is high — 57% of residents hold a bachelor's degree or higher, well above the national average of 33%.

Overall, ZIP code 03823 reflects a community defined by a highly educated population and high homeownership.

2,213
population
11.65
sq mi land
Standard
ZIP type
Eastern (ET)
timezone
03823 ZIP code map
Cities in ZIP code 03823

Below are the cities the US Postal Service accepts for ZIP code 03823. Using any city not on this list may result in mail delivery delays.

City Status
Madbury Acceptable
Demographics updated 05/2026
Population
Total population 2,213
Population density 190 / sq mi
State FIPS 33
County FIPS 017
Geography
Land area 11.65 sq mi
Water area 0.54 sq mi
Latitude 43.1689
Longitude -70.9309
Timezone Eastern (ET)
Area code 603
Total population by age
Gender
Race & ethnicity
Economics updated 05/2026
Household income
Income range This ZIP County avg State avg
Under $50k 8.4% 32.7% 31.0%
$50k – $100k 26.7% 33.3% 31.2%
$100k – $200k 39.0% 26.7% 28.1%
Over $200k 25.8% 7.4% 9.7%

Demographics & statistics

2,213
Population
190
People per sq mi
37.7
Median age
$165,583
Median household income
$59,633
Per capita income
$456,500
Median home value
$1,637
Median monthly rent
81.1%
Home ownership
3.9%
Poverty rate
2.1%
Unemployment
585
Housing units
57.4%
Bachelor's or higher

Age distribution

Male Female
59
Under 5
68
47
5–9
55
98
10–14
114
80
15–19
92
93
20–24
107
100
25–34
115
152
35–44
175
151
45–54
175
89
55–59
103
53
60–64
62
57
65–74
66
32
75–84
38
15
85+
17
← Male
Female →

Age summary

GroupCount%
Under 1858426.4%
18 and over1,62973.6%
65 and over22510.2%
Median age37.7 years

Race & ethnicity

White 83.2%
Two or more races 8%
Asian 4.2%
Hispanic or Latino 3.7%
Other race 0.5%
Black or African American 0.4%
GroupCount%
White1,91283.2%
Two or more races1858%
Asian964.2%
Hispanic or Latino863.7%
Other race110.5%
Black or African American90.4%

Household income

Income range This ZIP County avg State avg
Under $50k 8.4% 32.7% 31.0%
$50k – $100k 26.7% 33.3% 31.2%
$100k – $200k 39.0% 26.7% 28.1%
Over $200k 25.8% 7.4% 9.7%
Under $10k 1.9%
$15k–$25k 1.3%
$25k–$35k 2.0%
$35k–$50k 2.9%
$50k–$75k 8.1%
$75k–$100k 10.6%
$100k–$150k 17.7%
$150k–$200k 14.1%
$200k+ 41.3%
Range% of households
Under $10k1.9%
$15k–$25k1.3%
$25k–$35k2.0%
$35k–$50k2.9%
$50k–$75k8.1%
$75k–$100k10.6%
$100k–$150k17.7%
$150k–$200k14.1%
$200k+41.3%
Median income$165,583

Housing

Home values

$50k–$100k 1.8%
$150k–$200k 2.5%
$200k–$300k 7.5%
$300k–$500k 51.4%
$500k–$1M 35.1%
$1M+ 1.6%

Housing overview

MetricValue
Median home value$456,500
Median rent / month$1,637
Owner occupied81.1%
Renter occupied18.9%
Vacant3.8%
Single-family detached73.3%
Large apartment buildings0.0%
Mobile homes5.9%
Median rooms7.1
Avg household size (owned)3.28

Year built

Era%
2020 or later0.0%
2010–20194.8%
2000–200922.1%
1990–19998.8%
1980–198925.5%
1970–197918.2%
1960–19696.3%
1950–19595.5%
1940–19490.8%
1939 or earlier8.1%

Bedrooms

Size% of units
No bedroom (studio)1.8%
1 bedroom2.8%
2 bedrooms14.1%
3 bedrooms43.6%
4 bedrooms31.7%
5+ bedrooms5.9%

Vehicles per household

Vehicles% of households
No vehicle0.4%
1 vehicle15.8%
2 vehicles43.0%
3 or more40.7%

Heating fuel

Fuel type%
Utility gas3.1%
Electricity3.6%
Propane / LP gas23.3%
Fuel oil53.3%
Wood14.0%
Solar2.3%

Households & families

Household typeCount%
Married-couple family47368.8%
Cohabiting couple629.0%
Male householder, no spouse7210.5%
Female householder, no spouse8111.8%
Households with children under 1832346.9%
Households with seniors (65+)17926.0%
Average household size3.21

Marital status

StatusMaleFemale
Never married36.0%32.8%
Married57.8%54.2%
Separated0.7%3.1%
Widowed1.3%5.5%
Divorced4.2%4.4%

Education

Less than 9th grade 0.0%
Some HS, no diploma 1.8%
HS graduate 16.9%
Some college, no degree 11.2%
Associate's degree 12.7%
Bachelor's degree 28.9%
Graduate / professional 28.5%
Metric%
HS diploma or higher98.2%
Bachelor's or higher57.4%

School enrollment (ages 3–17)

TypeCount%
Nursery / preschool589.3%
Kindergarten71.1%
Elementary school26542.6%
High school15825.4%
College / grad school13421.5%

Employment

Industry of employment

Education & healthcare 29.8%
Professional & management 13.4%
Finance & real estate 11.9%
Manufacturing 11.8%
Retail trade 9.8%
Arts, food & hospitality 8.4%
Construction 4.7%
Transportation & utilities 3.1%
Public administration 2.2%
Agriculture & mining 2.1%
Other services 1.8%
Information 0.6%
Wholesale trade 0.4%

Occupation

Category%
Management, business & arts57.5%
Service11.4%
Sales & office15.5%
Natural resources & construction5.9%
Production & transportation9.6%

Employment type

Type%
Private sector86.5%
Government9.9%
Self-employed3.7%
Unpaid family workers0.0%

Commute

Method%
Drive alone77.9%
Carpool7.9%
Public transit1.1%
Walk0.6%
Work from home10.8%
Other means1.7%
Avg commute (minutes)26.5

Poverty

All people 3.9%
Under 18 years 2.2%
18 and over 4.6%
Married-couple families 0.8%
Female-led households 7.0%

Income support

Source% of households
Social Security28.2%
Retirement income26.7%
Supplemental Security3.6%
Cash public assistance0.7%
Food stamps / SNAP1.6%

Health indicators

Condition%
Obesity27.9%
High blood pressure27.0%
High cholesterol30.9%
Diabetes7.3%
Heart disease4.6%
Stroke2.0%
Asthma9.9%
Arthritis20.9%
Kidney disease2.1%
Pulmonary disease4.7%
Cancer6.1%
Behavior / access%
Smoking13.3%
Binge drinking19.2%
No physical activity16.5%
Less than 7 hrs sleep28.9%
Depression23.8%
Fair or poor health9.3%
Poor mental health14.2%
Poor physical health8.4%
No health insurance8.5%
Visited doctor (checkup)71.8%
Visited dentist73.1%
Cholesterol screening91.8%
Teeth loss8.3%

Veterans & disability

VeteransCount%
Civilian veterans754.6%
Disability%
Any disability5.4%
Under 181.2%
18–64 years4.4%
65 and over23.2%

Health insurance coverage

Type%
Private insurance86.9%
Public insurance16.4%
No insurance3.4%
Uninsured under 193.3%

Language & origin

Language spoken at home (age 5+)

LanguageCount%
English only2,08694.3%
Spanish211.0%
Other Indo-European10.0%
Asian & Pacific Islander00.0%
Other languages170.8%

Place of birth & citizenship

OriginCount%
Native born (US)2,06893.4%
Born in same state2,02391.4%
Born in different state1,01145.7%
Foreign born452.0%
Naturalized citizen1456.6%
Not a US citizen6041.4%

Ancestry

AncestryCount%
French56725.6%
Italian47821.6%
Arab1737.8%
German1245.6%
AncestryCount%
Polish271.2%
English140.6%
Irish130.6%
Norwegian60.3%

Technology access

Metric% of households
Computer access31.1%
Internet access98.3%

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

Frequently asked questions about ZIP code 03823

What city is ZIP code 03823 in?

ZIP code 03823 is primarily assigned to Madbury, New Hampshire.

What county is ZIP code 03823 in?

ZIP code 03823 falls within Strafford County, New Hampshire.

How educated is the population of ZIP code 03823?

57% of residents hold a bachelor's degree or higher — well above the national average of ~33%, reflecting a highly educated population.

Is ZIP code 03823 mostly owner-occupied?

81% of occupied units in ZIP code 03823 are owner-occupied, well above the national average.

What is the median household income in ZIP code 03823?

The median household income in ZIP code 03823 is $165,583, above the national median of ~$75,000.

What is the typical home value in ZIP code 03823?

The median home value in ZIP code 03823 is $456,500.

What timezone is ZIP code 03823 in?

ZIP code 03823 observes the EST timezone.

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