PlainZIP

Loudon, NH · standard

ZIP Code 03307

Merrimack County, New Hampshire - Census ACS demographics, housing tenure, and business patterns, benchmarked against every US ZIP.

5,334
42/sq mi
$107,226
Median income
$365,400
Median home value
29.3%
Bachelor's or higher

The verdict

Loudon pairs an upper-quartile household income with upper-quartile home values, in a rural, homeowner-dominated area.

Top 15%
household income, US ZIPs
Top 24%
home value, US ZIPs
42
people per sq mi
90%
owner-occupied homes

Source: U.S. Census Bureau ACS 5-Year Estimates (2019–2023). Percentiles rank ZIP 03307 against every reporting US ZIP.

ZIP code 03307 is a mid-sized community (a standard USPS delivery area) in Loudon, Merrimack County, New Hampshire, home to 5,334 residents across 127.9 square miles, a density of 42 people per square mile, in the New York time zone.

ZIP 03307 lands in the middle-income range, with a median household income of $107,226 (5% above the New Hampshire average), while per-capita income is $44,872. Poverty here runs at 4.4%, with unemployment measured at 1.8%. The typical home here is valued at $365,400 (10% below the state average); renters pay a median of $1,321 monthly, and 89.7% of units are owner-occupied.

Educational attainment sits below the national norm: 29.3% of adults hold a bachelor's degree or higher, the median age is 49.4, and the average commute is 30 minutes. Beyond these figures, 9 nearby ZIP codes within about 10 miles are surfaced below, along with 6 more sharing Merrimack County, letting you compare 03307 to its immediate surroundings rather than a national baseline alone.

Every figure on this page is sourced from the U.S. Census Bureau American Community Survey 5-Year Estimates (including median rent) and the FHFA House Price Index, no estimates, no proprietary scoring. Verify with Census →

Top industries in ZIP 03307

Top 5 sectors by establishment count in Loudon, NH

Which industries have the most business establishments in ZIP 03307.

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 · ZIP Code Business Patterns (ZBP) As of 2023

Source: U.S. Census Bureau, American Community Survey 5-Year Estimates + ZIP Code Business Patterns + FHFA HPI ACS demographics and median rent, ZBP business establishments, FHFA HPI for ZIP 03307, Loudon, NH · 2023 Census ACS 5-Year Estimates use a rolling 60-month sample for stable small-geography estimates; ZBP updated annually; FHFA HPI updated quarterly/annually.

Quick Facts

5,334

Population

127.9

Area (sq mi)

42

People / sq mi

New York

Time Zone

standard

ZIP Type

Neighborhood Scorecard
Get an A-F grade across income, safety, housing, rent, education, commute, and childcare for this ZIP code.
View Scorecard →

Who lives in ZIP 03307?

49.4

Median Age

51.5%

Male

48.5%

Female

2.4%

Foreign-Born

White 98.0%
African American 0.0%
Asian 0.2%
American Indian or Alaska Native 0.0%
Native Hawaiian or Pacific Islander 0.0%
Two or More Ethnicities 1.8%
Hispanic or Latino 0.3%

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?

$107,226

Median Household Income

+5% vs state

$44,872

Per Capita Income

4.4%

Poverty Rate

1.8%

Unemployment Rate

30.4 min

Mean Commute Time

How ZIP 03307 ranks nationally

Loudon, NH household income vs. every US ZIP code

Median household income, the full national distribution, with this ZIP marked

$107,226 Top 15% higher than 85% of 30,318 US ZIPs

$0–$20,000: 118 US ZIPs (0%). Below this entry. $20,000–$40,000: 1,573 US ZIPs (5%). Below this entry. $40,000–$60,000: 7,092 US ZIPs (23%). Below this entry. $60,000–$80,000: 9,980 US ZIPs (33%). Below this entry. $80,000–$100,000: 5,778 US ZIPs (19%). Below this entry. $100,000–$120,000: 2,855 US ZIPs (9%). This entry sits in this band. $120,000–$140,000: 1,362 US ZIPs (4%). Above this entry. $140,000–$160,000: 686 US ZIPs (2%). Above this entry. $160,000–$180,000: 364 US ZIPs (1%). Above this entry. $180,000–$200,000: 186 US ZIPs (1%). Above this entry. $200,000–$220,000: 324 US ZIPs (1%). Above this entry. This ZIP $0 $200K+ every reporting US ZIP, bucketed by value

Each bar is a $20K-wide band; taller bars hold more US ZIPs. The dashed line + filled bar mark this entry. Hover or tap any bar for its full count, share, and where it sits relative to this entry.

Source U.S. Census Bureau, ACS 5-Year Estimates · 2019–2023

Source: U.S. Census Bureau, ACS 5-Year Estimates (2023)

What is the education profile here?

High School Graduate or Higher 70.1%
Bachelor's Degree or Higher 29.3%

Source: U.S. Census Bureau, ACS 5-Year Estimates (2023)

What does housing look like?

2,352

Total Housing Units

2,248

Occupied Units

104

Vacant Units

2.54

Avg Household Size

Occupancy Type

Owner 89.7%
Renter 10.3%

$365,400

Median Home Value

-10% vs state

$1,321

Median Rent

1988

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

+2.3%

YoY Change (2024)

328

HPI Index (2000 = 100)

+228%

Total Change Since 2000

Home values in ZIP 03307 have increased 2.3% over the past year (2024). Since 2000, this ZIP has seen +228% cumulative appreciation.

Year Annual Change HPI Index
2020 +3.0% 205
2021 +15.1% 236
2022 +19.7% 282
2023 +13.4% 320
2024 +2.3% 328

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 97 business establishments in ZIP 03307, employing approximately 602 people with a combined annual payroll of $35,302,000.

97

Businesses

602

Employees

$35.3M

Annual Payroll

11

Industry Sectors

Industry Establishments % of Total
Construction 23 23.7%
Other services (except public administration) 14 14.4%
Retail trade 11 11.3%
Accommodation and food services 8 8.3%
Professional, scientific, and technical services 7 7.2%
Administrative and support and waste management and remediation services 6 6.2%
Health care and social assistance 6 6.2%
Manufacturing 3 3.1%
Wholesale trade 3 3.1%
Transportation and warehousing 3 3.1%
Arts, entertainment, and recreation 3 3.1%

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 03307 vs 03258 →

ZIP 03307 vs its nearest neighbors, by population

Resident population of this ZIP and the closest reporting ZIP codes within ~10 miles.

residents

What this shows Among its immediate neighbors, ZIP 03307 ranks #4 by population - useful context the national average alone can't give.

Source U.S. Census Bureau · ACS 5-Year Estimates As of 2019–2023

ZIP 03307 vs its nearest neighbors, by median income

Median household income of this ZIP and the closest reporting ZIP codes within ~10 miles.

median income

What this shows By household income, ZIP 03307 ranks #5 of 9 neighboring ZIPs, local affluence varies block to block, not just metro to metro.

Source U.S. Census Bureau · ACS 5-Year Estimates As of 2019–2023
ZIP Code City Population Distance
03258 Chichester, NH 2,517 5.2 mi
03224 Canterbury, NH 2,318 5.7 mi
03263 Pittsfield, NH 4,114 7.0 mi
03237 Gilmanton, NH 2,254 7.8 mi
03220 Belmont, NH 7,430 10.0 mi
03301 Concord, NH 33,008 8.6 mi
03837 Gilmanton Iron Works, NH 1,519 8.8 mi
03234 Epsom, NH 4,572 9.3 mi
03276 Tilton, NH 8,324 9.7 mi

More ZIP Codes in Merrimack County

03301 standard
Concord, NH
Pop: 33,008
03303 standard
Concord, NH
Pop: 15,524
03106 standard
Hooksett, NH
Pop: 13,374
03275 standard
Suncook, NH
Pop: 11,437
03235 standard
Franklin, NH
Pop: 8,562
03276 standard
Tilton, NH
Pop: 8,324

Related Areas

Merrimack County Loudon, NH New Hampshire

Frequently Asked Questions

What county is ZIP code 03307 in? ▼
ZIP code 03307 (Loudon) is located in Merrimack County, New Hampshire. Merrimack County contains multiple ZIP codes, see the full list at /counties/merrimack-nh.
What is the population of ZIP code 03307? ▼
ZIP code 03307 in Loudon, NH has a population of 5,334 according to the Census Bureau ACS 2023 estimates.
What is the median household income in ZIP 03307? ▼
The median household income in ZIP 03307 is $107,226, which is 41% above the national average of $76,288.
What is the average home value in ZIP 03307? ▼
The median home value in ZIP 03307 is $365,400, which is 31% above the national average of $278,155.
What is the demographic makeup of ZIP 03307? ▼
The largest racial group in ZIP 03307 is White at 98.0%. Hispanic or Latino residents make up 0.3% of the population.
How many businesses are in ZIP code 03307? ▼
ZIP code 03307 has 97 business establishments employing approximately 602 people, according to Census Bureau ZIP Code Business Patterns (ZBP) 2023 data.
What are the main industries in ZIP code 03307? ▼
The top industries by establishment count in ZIP 03307 are: Construction (23), Other services (except public administration) (14), Retail trade (11). There are 11 industry sectors represented in total.
How have home values changed in ZIP code 03307? ▼
According to the FHFA House Price Index, home values in ZIP 03307 increased by 2.3% in 2024. Since 2000, home values in this ZIP have appreciated by approximately 228%. This is a developmental index based on repeat sales and appraisal data from Fannie Mae and Freddie Mac.
What is the education level in ZIP code 03307? ▼
In ZIP code 03307, 70.1% of residents aged 25+ have a high school diploma or higher, and 29.3% hold a bachelor's degree or higher. These figures come from the Census Bureau ACS 5-Year Estimates (2023).
What is the average commute time in ZIP 03307? ▼
The mean commute time for workers in ZIP code 03307 is 30.4 minutes according to Census ACS data. The national average is roughly 26 minutes, so commuters here spend more time traveling to work than typical.
What percentage of residents own vs. rent in ZIP 03307? ▼
In ZIP code 03307, approximately 89.7% of occupied housing units are owner-occupied and 10.3% are renter-occupied, based on Census ACS 2023 data.
What is the poverty rate in ZIP code 03307? ▼
The poverty rate in ZIP code 03307 is 4.4% according to Census Bureau ACS 2023 estimates. This measures the percentage of the population living below the federal poverty threshold.

Read our methodology to see how this data is sourced, computed, and verified.