| City: | Gratis, Ohio |
| County: | Preble County |
| Timezone: | Eastern (GMT -05:00) |
| Local Time: | 8:34:12 AM |
| Population: | 830 [See All] |
| Area Codes: | 326 / 937 |
| Classification: | PO Box |
| Coordinates: | 39.6475, -84.5241 |
| Land Area: | 0.929 sq mi |
| Quick Link: |
Gratis is a small village in western Ohio's Preble County, covering less than one square mile. Despite the compact size and established street grid, this is a PO Box Only Zone. All 830 residents rely on the post office for mail delivery.
The Gratis post office maintains 342 PO Boxes for 313 households, a 1.09 adoption rate that indicates service extends slightly beyond the village boundaries. Some rural residents from surrounding areas use Gratis boxes. There's no alternative, no carrier routes delivering to homes. If you live here or nearby, a PO Box is required.
The village has a traditional street layout with named roads like E Franklin St, S Ada Doty St, and Harrison St. ZIP+4 records show 22 distinct streets, and some addresses have apartment designators. But these streets don't receive mail delivery. The addresses exist for location purposes, not postal service.
Gratis is home to 830 people with a median age of 40. It's 97% white with a median household income of $76,033. About 29% of workers work from home, higher than the national average. Median home values sit at $143,000. The village has 11 business establishments employing 69 people. Most residents (80%) own their homes rather than rent.
This isn't a remote frontier outpost. Gratis sits within 15 miles of Dayton, Ohio. But the PO Box classification dates to before October 2004, when the USPS began tracking such dates. It's likely older. Once a ZIP receives PO Box classification, there's no process to change it, even if circumstances evolve. The village remains a PO Box Only Zone decades later.
All mail to Gratis addresses must be sent to a PO Box:
Recipient Name
PO Box ###
Gratis, OH 45330Traditional small-town street grid with directional naming (North, South, East, West) and named streets like Franklin and Harrison, though none receive carrier delivery.
ZIP Code 45330 has 830 residents and 313 households (average 2.61 persons per household). The median age is 40.0 years, about the same as the state (39.8) and slightly older than the nation (38.8). The gender split is 51.7% male and 48.3% female, which is slightly higher than the state male share (49.0%), making this a male-majority area. Largest groups are White (97.2%, much higher than the state average of 77.0% and well above the national average of 61.6%) and Hispanic or Latino (0.5%); Hispanic or Latino residents make up 0.5%, which is much lower than the national average (18.7%).
Explore More:Population Over TimeBy Age & GenderBy RaceBy GenderNativity & Citizenship
| 2020 Population: | 830Source: Census DHC |
| 2024 ACS Population Estimate: | 810Source: Census ACS |
| 2026 ZC Population Estimate: | 0Source: ZIP-Codes.com |
| Population Density: | 893.4 people per sq mile |
| Average Income: | $76,033Source: Census ACS |
| Households: | 313Source: Census DHC |
| Average House Value: | $143,000Source: Census ACS |
| Persons Per Household: | 2.61Source: Census DHC |
| Average Family Size: | 3.21Source: Census ACS |
| Group | 2010 | 2011 | 2102 | 2013 | 2014 | 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Census ACS Population Estimate | -- | 879 | 746 | 742 | 810 | 895 | 917 | 996 | 846 | 874 | 800 | 859 | 614 | 810 |
| Decennial Census | 834 | -- | -- | -- | -- | -- | -- | -- | -- | -- | 830 | -- | -- | -- |
Median Age: 40
Male Median Age: 36.8
Female Median Age: 42.8
| Group | < 5 | 5-9 | 10-14 | 15-19 | 20-24 | 25-29 | 30-34 | 35-39 | 40-44 | 45-49 | 50-54 | 55-59 | 60-64 | 65-69 | 70-74 | 75-79 | 80-84 | 85+ |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Male | 23 | 28 | 36 | 27 | 21 | 33 | 36 | 24 | 24 | 18 | 24 | 42 | 26 | 28 | 18 | 8 | 3 | 10 |
| Female | 19 | 29 | 24 | 24 | 14 | 16 | 28 | 33 | 21 | 24 | 21 | 37 | 31 | 30 | 16 | 15 | 10 | 9 |
| Total | 42 | 57 | 60 | 51 | 35 | 49 | 64 | 57 | 45 | 42 | 45 | 79 | 57 | 58 | 34 | 23 | 13 | 19 |
| White: | 807 | 98.78% |
| Black: | 2 | 0.24% |
| Hispanic:* | 4 | 0.49% |
| Asian: | 1 | 0.12% |
| American Indian: | 1 | 0.12% |
| Hawaiian: | 0 | 0% |
| Other: | 2 | 0.24% |
| Total: | 817 | 100% |
| Gender | Count | % | Median Age |
|---|---|---|---|
| Males: | 429 | 51.69% | 36.8 years |
| Females: | 401 | 48.31% | 42.8 years |
| Total: | 830 | 100% | 40.0 years |
| Native, born in the United States: | 810 | 100.00% |
| Native, born in PR, Island Areas, or abroad: | 0 | 0.00% |
| Foreign born, naturalized U.S. citizen: | 0 | 0.00% |
| Foreign born, not a U.S. citizen: | 0 | 0.00% |
| Total Population: | 810 | 100% |
| Total Native Population: | 810 | 100.00% |
| Total Foreign-born Population: | 0 | 0.00% |
In 2023, the Median household income is $76,033, which is far above the state median ($69,680), is up $30,095 (65.5%) since 2011 and above its 2019 pre-pandemic level by $22,229. Family households earn a median of $74,792 versus $45,694 for nonfamily households (a difference of $29,098). By gender, male median income is $60,682 and female is $37,300, which is much lower than the national female median ($53,445), with a current gap of $23,382 that has widened from 2011 to 2023. The labor-force participation rate is 63.3%, which is on par with the national rate (63.5%). The unemployment rate is 6.9%, which is much higher than the state rate (4.8%). The largest occupation group is Management (28.1%).
Explore More:Income Over TimeHousehold IncomeEmployment StatusBy Occupation
| Income Type | 2011 | 2012 | 2013 | 2014 | 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Median Household Income | $45,938 | $48,173 | $48,750 | $49,500 | $50,259 | $51,167 | $53,346 | $62,981 | $53,804 | $57,361 | $68,333 | $58,839 | $76,033 |
| Median Family Income | $49,565 | $51,250 | $51,285 | $54,609 | $53,438 | $53,935 | $56,979 | $72,656 | $54,792 | $70,301 | $74,952 | $78,594 | $74,792 |
| Median NonFamily Income | $27,708 | $30,536 | $30,089 | $29,097 | $31,146 | $31,490 | $31,111 | $31,429 | $32,083 | $30,313 | $32,159 | $33,846 | $45,694 |
| Median Male Income | $43,542 | $47,955 | $47,917 | $51,500 | $43,281 | $45,455 | $41,406 | $40,938 | $41,985 | $41,953 | $45,179 | $47,850 | $60,682 |
| Median Female Income | $23,990 | $24,097 | $23,750 | $28,750 | $27,344 | $27,188 | $31,250 | $46,528 | $36,667 | $32,059 | $34,896 | $34,042 | $37,300 |
| Employed: | 391 | 58.89% |
| Unemployed: | 29 | 4.37% |
| Not In Labor Force: | 244 | 36.75% |
| Total: | 664 | 100% |
| Management, business, science, and arts: | 110 | 28.13% |
| Service: | 52 | 13.30% |
| Sales and Office: | 93 | 23.79% |
| Natural resources, construction, and maintenance: | 53 | 13.55% |
| Production, transportation, and material moving: | 83 | 21.23% |
| Total Civilian Employed Population: | 391 | 100% |
In 2023, the median home value is $143,000, which is considerably lower than the national median ($303,400), is up $40,600 (39.65%) since 2011 and above its 2019 pre-pandemic level by $55,800. The median gross rent is $850, which is much lower than the national median ($1,348), is up $84 (10.97%) since 2011 and below its 2019 pre-pandemic level by $66. Of occupied housing, owners make up 84.64% (57.53% with a mortgage, 42.47% free-and-clear) and renters 15.36% - making this ZIP Code more home ownership than the state and under national rental averages. The vacancy rate is 6.76%, which is considerably lower than the national rate (10.43%).
Explore More:Compare Home ValueHome Value Over TimeRent & Over TimeHousing Occupancy
| Group | 2011 | 2102 | 2013 | 2014 | 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Median Home Value | $102,400 | $96,500 | $96,400 | $97,500 | $92,200 | $92,700 | $91,800 | $88,100 | $87,200 | $93,900 | $101,900 | $116,800 | $143,000 |
| Less than $500: | 0 | 0.00% |
| $500 to $999: | 36 | 67.92% |
| $1,000 to $1,499: | 13 | 24.53% |
| $1,500 to $1,999: | 0 | 0.00% |
| $2,000 to $2,499: | 0 | 0.00% |
| $2,500 to $2,999: | 0 | 0.00% |
| $3,000 or more: | 0 | 0.00% |
| No Rent: | 4 | 7.55% |
| Total: | 53 | 100% |
| Group | 2011 | 2102 | 2013 | 2014 | 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Median Rent | $766 | $775 | $818 | $757 | $713 | $721 | $775 | $813 | $916 | $932 | $944 | $859 | $850 |
| Owner Occupied (with mortgage): | 168 | 48.70% |
| Owner Occupied (free and clear, no mortgage): | 124 | 35.94% |
| Renter Occupied: | 53 | 15.36% |
| Total Occupied Housing Units: | 345 | 100% |
| Occupied Housing Units: | 345 | 93.24% |
| Vacant Housing Units (not graphed): | 25 | 6.76% |
| Total Housing Units: | 370 | 100% |
| Single-Family Units: | 364 | 98.38% |
| Multi-Family Units: | 0 | 0.00% |
| Other Units: | 6 | 1.62% |
| Total Housing Units: | 370 | 100% |
In 2023, 19.90% of adults (25+) have a bachelor's degree or higher, which is far lower than the national rate (35.00%). High school or higher is 92.90%, which is comparable to the national rate (89.40%). The uninsured rate is 3.00%, which is far lower than the national rate (8.60%). The share of people in poverty is 3.50%, which is on par with the state rate (9.20%), down 1.70 percentage points since 2011 and above its 2019 pre-pandemic level by 0.80 percentage points. This suggests a positive shift in the local economic and social landscape - higher incomes, steadier consumer demand, and a strengthening tax base. Among residents ages 3+, the largest enrollment group is elementary (38.85%). College enrollment is 19.11%, which is comparable to the national rate (26.70%), meaning the community mirrors broader higher-education participation.
Explore More:Educational AttainmentHealth InsurancePoverty Over TimeSchool Enrollment
| Less than 9th grade: | 11 | 1.91% |
| 9th to 12th grade, no diploma: | 30 | 5.20% |
| High school graduate (includes equivalency): | 284 | 49.22% |
| Some college, no degree: | 110 | 19.06% |
| Associate's degree: | 27 | 4.68% |
| Bachelor's degree: | 78 | 13.52% |
| Graduate or professional degree: | 37 | 6.41% |
| Total: | 577 | 100% |
| High school or higher: | 536 | 92.89% |
| Bachelor's degree or higher: | 115 | 19.93% |
| Private Insurance: | 613 | 65.42% |
| Public Insurance: | 300 | 32.02% |
| No Insurance: | 24 | 2.56% |
| Total: | 937 | 100% |
| Has Health Insurance: | 913 | 97.44% |
| Group | 2011 | 2102 | 2013 | 2014 | 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| % of People in Poverty | 5.2% | 5.8% | 7.7% | 7.8% | 7.6% | 7.6% | 3.4% | 3.6% | 2.7% | 3.2% | 0.0% | 0.0% | 3.5% |
Note: Counts of Families & People in poverty are not published at the ZIP Code level due to small sample sizes. Percentages shown are survey estimates from the American Community Survey (ACS). They may differ from official poverty statistics. The U.S. Census Bureau defines poverty status by comparing a family's or individual's total income with federal poverty thresholds that vary by family size and composition.
| Nursery School, Preschool: | 7 | 4.46% |
| Kindergarten: | 0 | 0.00% |
| Elementary school (grades 1-8): | 61 | 38.85% |
| High school (grades 9-12): | 59 | 37.58% |
| College or graduate school: | 30 | 19.11% |
| Total: | 157 | 100% |
| Early Childhood: | 7 | 4.46% |
| K-12 (Primary & Secondary School): | 120 | 76.43% |
ZIP Code 45330 supports both business and residential activity. According to the Business Census (2024), there are 10 business establishments, employing about 62 people with an annual payroll of $2,064,000.
| # Residential Mailboxes: | 0Source: USPS |
| # Business Mailboxes: | 0Source: USPS |
| Total Delivery Receptacles: | 352Source: USPS |
| Single Family Delivery Units: | 0Source: USPS |
| Multi Family Delivery Units: | 0Source: USPS |
| # of Businesses: | 10Source: CBP |
| 1st Quarter Payroll: | $402,000Source: CBP |
| Annual Payroll: | $2,064,000Source: CBP |
| # of Employees: | 62Source: CBP |
ZIP Code 45330 is located in Preble County, Ohio, within the Metropolitan Statistical Area (CBSA ) and Ohio's 8th Congressional District. This area has a population of 0 people, about 0.00% of whom live in ZIP Code 45330. It covers 0.929 sq mi of land and a water area of 0.001 sq mi.
| CBSA Name: | --Source: Census |
| CBSA Number: | --Source: Census |
| CBSA Type: | --Source: Census |
| CBSA Division: | --Source: Census |
| CBSA Population: | 0Source: Census |
| MSA: | Source: Census |
| Land Area: | 0.929 sq miSource: Census |
| Water Area: | 0.001 sq miSource: Census |
| Congressional District: | 08Source: USPS |
| Congressional Land Area: | 2450.49 sq miSource: Census |
| PMSA: | Source: Census |
| Intro Date: | < 2004-10Source: ZIP-Codes.com |
| Place FIPS Code: | 3931472Source: Census |
| Place Name: | Gratis village; OhioSource: Census |
We could not locate which school district 45330 belongs to, but we will update this once new district data is released. There are no public schools nor private schools with a mailing address in this ZIP Code. Listing Nearby schools instead. It also has 6 colleges, universities or post secondary education institutions nearby which would be a short commute to.
Our sources include trusted federal and licensed data from the United States Postal Service, U.S. Census Bureau, U.S. Geological Survey, Centers for Medicare & Medicaid Services, and the National Center for Education Statistics, along with proprietary datasets created by ZIP-Codes.com. Data last updated on January 1, 2026.