ZIP Code 03823
standardSource:
Madbury · Strafford County · New Hampshire
- Population
- 1,719
- Median income
- $148,365
- Median home value
- $476,900
- Bachelor's or higher
- 52.6%
- Land area
- 27.4 sq mi
63/sq mi
▲ 94% vs US
higher than 96% of US ZIPs
▲ 71% vs US
higher than 86% of US ZIPs
Median age 37.7
New York
ZIP code 03823 in Madbury, New Hampshire has a population of 1,719. The median household income is $148,365, which is 94% above the national average. Median home value is $476,900, 71% above the US average. 52.6% of residents hold a bachelor's degree or higher.
ZIP code 03823 is classified by USPS as a standard delivery area and covers roughly 27.4 square miles in Madbury, Strafford County, New Hampshire. The area is home to 1,719 residents, producing a population density of 63 people per square mile, and falls within the New York time zone. These USPS and Census boundary values drive every downstream statistic on this page, including the benchmarks that compare 03823 against New Hampshire and the nation.
On the economic side, the median household income for ZIP 03823 sits at $148,365 (45% above the New Hampshire average), while per-capita income is $57,423. The poverty rate stands at 4.9% and the unemployment rate at 2.1%. On housing, the median home value is $476,900 (18% above the state average) with median rent at $1,574 per month, and 82.9% of occupied units are owner-occupied, a direct signal of whether 03823 behaves more like a homeowner neighborhood or a renter-heavy ZIP.
Education and household profile round out the picture: 52.6% of adults hold a bachelor's degree or higher, the median age is 37.7, and the average commute is 25 minutes. We also surface 10 nearby ZIP codes within roughly 10 miles and 6 additional ZIPs sharing Strafford County, so you can benchmark 03823 against its immediate geography rather than a national average alone. Every figure is sourced from the U.S. Census Bureau American Community Survey 5-Year Estimates, HUD Fair Market Rents, and FHFA Home Price Index data, no estimates, no proprietary scoring. Verify with HUD →
Top industries in ZIP 03823
Top 5 sectors by establishment count
Which industries have the most business establishments in ZIP 03823.
- Wholesale trade
Wholesale trade
4 establishments
- Professional, scientific, and technical services
Professional, scientific, and technical services
4 establishments
- Health care and social assistance
Health care and social assistance
4 establishments
- Other services (except public administration)
Other services (except public administration)
4 establishments
What this shows Establishment counts come from the Census ZIP Code Business Patterns program, which counts physical business locations rather than employees or revenue.
Source: U.S. Census Bureau, American Community Survey 5-Year Estimates + ZIP Code Business Patterns + HUD FMR + FHFA HPI ACS demographics, ZBP business establishments, HUD Fair Market Rents, FHFA HPI for ZIP 03823, Madbury, NH · 2023 Census ACS 5-Year Estimates use a rolling 60-month sample for stable small-geography estimates; ZBP updated annually; HUD FMR + FHFA HPI updated quarterly/annually.
Quick Facts
1,719
Population
27.4
Area (sq mi)
63
People / sq mi
New York
Time Zone
standard
ZIP Type
Who lives in ZIP 03823?
37.7
Median Age
46.8%
Male
53.2%
Female
6.4%
Foreign-Born
Hispanic or Latino is an ethnicity category from the Census Bureau and may overlap with other categories above.
Source: U.S. Census Bureau, ACS 5-Year Estimates (2023)
How much do residents earn?
$148,365
Median Household Income
+45% vs state
$57,423
Per Capita Income
4.9%
Poverty Rate
2.1%
Unemployment Rate
25.4 min
Mean Commute Time
Source: U.S. Census Bureau, ACS 5-Year Estimates (2023)
What is the education profile here?
Source: U.S. Census Bureau, ACS 5-Year Estimates (2023)
What does housing look like?
756
Total Housing Units
735
Occupied Units
21
Vacant Units
2.98
Avg Household Size
Occupancy Type
$476,900
Median Home Value
+18% vs state
$1,574
Median Rent
1984
Median Year Built
Source: U.S. Census Bureau, ACS 5-Year Estimates (2023)
How have home values changed over time?
FHFA House Price Index, annual appreciation data based on repeat sales and appraisals
+14.9%
YoY Change (2024)
286
HPI Index (2000 = 100)
+186%
Total Change Since 2000
Home values in ZIP 03823 have increased 14.9% over the past year (2024). Since 2000, this ZIP has seen +186% cumulative appreciation.
| Year | Annual Change | HPI Index |
|---|---|---|
| 2020 | +3.2% | 179 |
| 2021 | +11.8% | 201 |
| 2022 | +18.2% | 237 |
| 2023 | +5.0% | 249 |
| 2024 | +14.9% | 286 |
Source: Federal Housing Finance Agency (FHFA) House Price Index, All-Transactions, Five-Digit ZIP Codes (Developmental Index). Index base = 100 in year 2000. Data through 2024. ZIP codes with few transactions may show missing values.
What businesses operate in this ZIP?
Census Bureau data shows 25 business establishments in ZIP 03823, employing approximately 217 people with a combined annual payroll of $10,977,000.
25
Businesses
217
Employees
$11.0M
Annual Payroll
4
Industry Sectors
| Industry | Establishments | % of Total |
|---|---|---|
| Wholesale trade | 4 | 16.0% |
| Professional, scientific, and technical services | 4 | 16.0% |
| Health care and social assistance | 4 | 16.0% |
| Other services (except public administration) | 4 | 16.0% |
Source: U.S. Census Bureau, ZIP Code Business Patterns (ZBP), 2023. Employment figures may include noise for disclosure avoidance.
Nearby ZIP Codes
Want a side-by-side? Compare 03823 vs 03820 →
| ZIP Code | City | Population | Distance |
|---|---|---|---|
| 03820 | Dover, NH | 30,039 | 2.9 mi |
| 03824 | Durham, NH | 14,638 | 4.0 mi |
| 03857 | Newmarket, NH | 9,006 | 7.2 mi |
| 03861 | Lee, NH | 4,330 | 5.0 mi |
| 03839 | Rochester, NH | 3,735 | 6.5 mi |
| 03878 | Somersworth, NH | 11,824 | 6.2 mi |
| 03825 | Barrington, NH | 8,512 | 5.9 mi |
| 03869 | Rollinsford, NH | 2,469 | 6.0 mi |
| 03868 | Rochester, NH | 5,323 | 10.2 mi |
| 03856 | Newfields, NH | 1,680 | 9.3 mi |
More ZIP Codes in Strafford County
Related Areas
Frequently Asked Questions
What county is ZIP code 03823 in? ▼
What is the population of ZIP code 03823? ▼
What is the median household income in ZIP 03823? ▼
What is the average home value in ZIP 03823? ▼
What is the demographic makeup of ZIP 03823? ▼
How many businesses are in ZIP code 03823? ▼
What are the main industries in ZIP code 03823? ▼
How have home values changed in ZIP code 03823? ▼
What is the education level in ZIP code 03823? ▼
What is the average commute time in ZIP 03823? ▼
What percentage of residents own vs. rent in ZIP 03823? ▼
What is the poverty rate in ZIP code 03823? ▼
ZIP Code Research Guides
Official Data Resources for Madbury, NH
Verify and explore additional data for this area using these official government sources.
Source: U.S. Census Bureau, ACS 5-Year Estimates (2023). Business data: Source: Census ZIP Code Business Patterns (ZBP) 2023. Home value trends: Source: FHFA House Price Index (HPI), Five-Digit ZIP Codes.
PlainZIP is not affiliated with the U.S. Census Bureau or any government agency.
Read our methodology , how this data is sourced, computed, and verified.