ZIP Code 04856
standardSource:
Rockport · Knox County · Maine
- Population
- 3,330
- Median income
- $86,979
- Median home value
- $469,000
- Bachelor's or higher
- 51.3%
- Land area
- 56.1 sq mi
59/sq mi
▲ 14% vs US
higher than 70% of US ZIPs
▲ 69% vs US
higher than 85% of US ZIPs
Median age 48.7
New York
ZIP code 04856 in Rockport, Maine has a population of 3,330. The median household income is $86,979, which is 14% above the national average. Median home value is $469,000, 69% above the US average. 51.3% of residents hold a bachelor's degree or higher.
ZIP code 04856 is classified by USPS as a standard delivery area and covers roughly 56.1 square miles in Rockport, Knox County, Maine. The area is home to 3,330 residents, producing a population density of 59 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 04856 against Maine and the nation.
On the economic side, the median household income for ZIP 04856 sits at $86,979 (18% above the Maine average), while per-capita income is $46,162. The poverty rate stands at 5.3% and the unemployment rate at 6.6%. On housing, the median home value is $469,000 (65% above the state average) with median rent at $1,194 per month, and 84.5% of occupied units are owner-occupied, a direct signal of whether 04856 behaves more like a homeowner neighborhood or a renter-heavy ZIP.
Education and household profile round out the picture: 51.3% of adults hold a bachelor's degree or higher, the median age is 48.7, and the average commute is 11 minutes. We also surface 8 nearby ZIP codes within roughly 10 miles and 6 additional ZIPs sharing Knox County, so you can benchmark 04856 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 04856
Top 5 sectors by establishment count
Which industries have the most business establishments in ZIP 04856.
- Health care and social assistance
Health care and social assistance
46 establishments
- Construction
Construction
34 establishments
- Professional, scientific, and technical services
Professional, scientific, and technical services
29 establishments
- Retail trade
Retail trade
26 establishments
- Accommodation and food services
Accommodation and food services
26 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 04856, Rockport, ME · 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
3,330
Population
56.1
Area (sq mi)
59
People / sq mi
New York
Time Zone
standard
ZIP Type
Who lives in ZIP 04856?
48.7
Median Age
47.3%
Male
52.7%
Female
3.2%
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?
$86,979
Median Household Income
+18% vs state
$46,162
Per Capita Income
5.3%
Poverty Rate
6.6%
Unemployment Rate
11.3 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?
2,018
Total Housing Units
1,498
Occupied Units
520
Vacant Units
2.37
Avg Household Size
Occupancy Type
$469,000
Median Home Value
+65% vs state
$1,194
Median Rent
1978
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
-4.2%
YoY Change (2024)
299
HPI Index (2000 = 100)
+199%
Total Change Since 2000
Home values in ZIP 04856 have decreased 4.2% over the past year (2024). Since 2000, this ZIP has seen +199% cumulative appreciation.
| Year | Annual Change | HPI Index |
|---|---|---|
| 2020 | +6.8% | 178 |
| 2021 | +7.8% | 192 |
| 2022 | +31.6% | 252 |
| 2023 | +23.9% | 312 |
| 2024 | -4.2% | 299 |
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 260 business establishments in ZIP 04856, employing approximately 3,084 people with a combined annual payroll of $204,890,000.
260
Businesses
3,084
Employees
$204.9M
Annual Payroll
13
Industry Sectors
| Industry | Establishments | % of Total |
|---|---|---|
| Health care and social assistance | 46 | 17.7% |
| Construction | 34 | 13.1% |
| Professional, scientific, and technical services | 29 | 11.2% |
| Retail trade | 26 | 10.0% |
| Accommodation and food services | 26 | 10.0% |
| Other services (except public administration) | 25 | 9.6% |
| Manufacturing | 15 | 5.8% |
| Real estate and rental and leasing | 15 | 5.8% |
| Administrative and support and waste management and remediation services | 13 | 5.0% |
| Arts, entertainment, and recreation | 9 | 3.5% |
| Finance and insurance | 8 | 3.1% |
| Educational services | 5 | 1.9% |
| Information | 3 | 1.1% |
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 04856 vs 04841 →
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Frequently Asked Questions
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How many businesses are in ZIP code 04856? ▼
What are the main industries in ZIP code 04856? ▼
How have home values changed in ZIP code 04856? ▼
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What percentage of residents own vs. rent in ZIP 04856? ▼
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ZIP Code Research Guides
Official Data Resources for Rockport, ME
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.