ZIP Code 45040
standardSource:
Mason · Warren County · Ohio
- Population
- 50,627
- Median income
- $133,240
- Median home value
- $440,000
- Bachelor's or higher
- 63.0%
- Land area
- 72.7 sq mi
696/sq mi
▲ 75% vs US
higher than 94% of US ZIPs
▲ 58% vs US
higher than 83% of US ZIPs
Median age 41.5
New York
ZIP code 45040 in Mason, Ohio has a population of 50,627. The median household income is $133,240, which is 75% above the national average. Median home value is $440,000, 58% above the US average. 63.0% of residents hold a bachelor's degree or higher.
ZIP code 45040 is classified by USPS as a standard delivery area and covers roughly 72.7 square miles in Mason, Warren County, Ohio. The area is home to 50,627 residents, producing a population density of 696 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 45040 against Ohio and the nation.
On the economic side, the median household income for ZIP 45040 sits at $133,240 (82% above the Ohio average), while per-capita income is $66,545. The poverty rate stands at 4.6% and the unemployment rate at 2.4%. On housing, the median home value is $440,000 (123% above the state average) with median rent at $1,811 per month, and 77.7% of occupied units are owner-occupied, a direct signal of whether 45040 behaves more like a homeowner neighborhood or a renter-heavy ZIP.
Education and household profile round out the picture: 63.0% of adults hold a bachelor's degree or higher, the median age is 41.5, and the average commute is 24 minutes. We also surface 10 nearby ZIP codes within roughly 10 miles and 6 additional ZIPs sharing Warren County, so you can benchmark 45040 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 45040
Top 5 sectors by establishment count
Which industries have the most business establishments in ZIP 45040.
- Professional, scientific, and technical services
Professional, scientific, and technical services
241 establishments
- Health care and social assistance
Health care and social assistance
198 establishments
- Accommodation and food services
Accommodation and food services
193 establishments
- Retail trade
Retail trade
140 establishments
- Other services (except public administration)
Other services (except public administration)
122 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 45040, Mason, OH · 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
50,627
Population
72.7
Area (sq mi)
696
People / sq mi
New York
Time Zone
standard
ZIP Type
Who lives in ZIP 45040?
41.5
Median Age
49.1%
Male
50.9%
Female
20.8%
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?
$133,240
Median Household Income
+82% vs state
$66,545
Per Capita Income
4.6%
Poverty Rate
2.4%
Unemployment Rate
23.6 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?
22,719
Total Housing Units
22,000
Occupied Units
719
Vacant Units
2.69
Avg Household Size
Occupancy Type
$440,000
Median Home Value
+123% vs state
$1,811
Median Rent
1998
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
+8.3%
YoY Change (2024)
242
HPI Index (2000 = 100)
+142%
Total Change Since 2000
Home values in ZIP 45040 have increased 8.3% over the past year (2024). Since 2000, this ZIP has seen +142% cumulative appreciation.
| Year | Annual Change | HPI Index |
|---|---|---|
| 2020 | +4.8% | 150 |
| 2021 | +10.3% | 165 |
| 2022 | +17.6% | 194 |
| 2023 | +15.2% | 224 |
| 2024 | +8.3% | 242 |
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 1,588 business establishments in ZIP 45040, employing approximately 35,147 people with a combined annual payroll of $2,654,241,000.
1,588
Businesses
35,147
Employees
$2.7B
Annual Payroll
16
Industry Sectors
| Industry | Establishments | % of Total |
|---|---|---|
| Professional, scientific, and technical services | 241 | 15.2% |
| Health care and social assistance | 198 | 12.5% |
| Accommodation and food services | 193 | 12.2% |
| Retail trade | 140 | 8.8% |
| Other services (except public administration) | 122 | 7.7% |
| Finance and insurance | 104 | 6.5% |
| Wholesale trade | 92 | 5.8% |
| Administrative and support and waste management and remediation services | 87 | 5.5% |
| Management of companies and enterprises | 80 | 5.0% |
| Real estate and rental and leasing | 75 | 4.7% |
| Construction | 56 | 3.5% |
| Transportation and warehousing | 54 | 3.4% |
| Manufacturing | 50 | 3.1% |
| Educational services | 42 | 2.6% |
| Arts, entertainment, and recreation | 26 | 1.6% |
| Information | 25 | 1.6% |
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 45040 vs 45034 →
| ZIP Code | City | Population | Distance |
|---|---|---|---|
| 45034 | Kings Mills, OH | 1,184 | 3.6 mi |
| 45249 | Cincinnati, OH | 12,902 | 5.4 mi |
| 45039 | Maineville, OH | 22,814 | 4.2 mi |
| 45069 | West Chester, OH | 49,060 | 5.3 mi |
| 45065 | South Lebanon, OH | 4,442 | 5.6 mi |
| 45050 | Monroe, OH | 8,548 | 6.9 mi |
| 45242 | Cincinnati, OH | 22,055 | 7.8 mi |
| 45241 | Cincinnati, OH | 23,044 | 7.0 mi |
| 45140 | Loveland, OH | 53,267 | 7.5 mi |
| 45044 | Middletown, OH | 52,822 | 7.7 mi |
More ZIP Codes in Warren County
Related Areas
Frequently Asked Questions
What county is ZIP code 45040 in? ▼
What is the population of ZIP code 45040? ▼
What is the median household income in ZIP 45040? ▼
What is the average home value in ZIP 45040? ▼
What is the demographic makeup of ZIP 45040? ▼
How many businesses are in ZIP code 45040? ▼
What are the main industries in ZIP code 45040? ▼
How have home values changed in ZIP code 45040? ▼
What is the education level in ZIP code 45040? ▼
What is the average commute time in ZIP 45040? ▼
What percentage of residents own vs. rent in ZIP 45040? ▼
What is the poverty rate in ZIP code 45040? ▼
ZIP Code Research Guides
Official Data Resources for Mason, OH
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.