| City: | Mark, Illinois |
| County: | Putnam County |
| Timezone: | Central (GMT -06:00) |
| Local Time: | 8:10:57 AM |
| Population: | 479 [See All] |
| Area Codes: | 779 / 815 |
| Classification: | PO Box |
| Coordinates: | 41.2659, -89.2528 |
| Land Area: | 0.872 sq mi |
| Quick Link: |
Mark is a small Illinois village in Putnam County with 479 residents and 211 households spread across less than one square mile. Despite its PO Box classification, the village has rural carrier delivery serving 93 street addresses across 22 different streets, while the post office maintains 176 PO Boxes. This is a PO Box Only Zone, meaning there's no alternative mail delivery available in the surrounding area.
The village shows a balanced service pattern. With 176 PO Boxes and 211 occupied homes, the adoption rate of 83% indicates that most households rely on PO Boxes rather than street delivery. Two rural carrier routes handle street delivery for those who have it, giving Mark a mixed-service character despite its official PO Box classification.
Mark's street layout reflects a traditional small-town grid. The main arteries are Hennepin Street (running east-west with 26 delivery points), Milwaukee Street (running north-south), and streets named for other cities like Saint Paul Street and Roberts Street. Numbered streets (1st, 2nd, 3rd) and a few Italian-themed names (Via Savoy, Via Cavour, Piazza Aglie) add variety to the street pattern. Industrial Park Road serves the village's 10 business establishments employing 232 people.
| Metric | Value |
|---|---|
| Population | 479 |
| Households | 211 |
| Median Age | 41.1 years |
| Median Household Income | $79,286 |
| Median Home Value | $153,600 |
| Owner-Occupied Homes | 79.6% |
| Work from Home | 20.8% |
With a median household income of $79,286 and median home values around $153,600, Mark is a working-class community. The median age of 41.1 years and typical household size of 2.3 people suggest families and middle-aged residents. About 80% of occupied homes are owner-occupied (168 of 211 units). Just 21% work from home, while most commute for employment, including 195 workers in transportation and warehousing, which is unusually high for a village this size.
Mail addressed to Mark can use either PO Box format or street addresses for rural route delivery:
PO Box format:
PO Box [number]
Mark, IL 61340Street address format:
[Number] [Street Name]
Mark, IL 61340Street names follow a traditional Midwest small-town pattern with directional grid (Hennepin, Milwaukee, Saint Paul streets) plus numbered streets and a few Italian-themed names (Via Savoy, Piazza Aglie).
ZIP Code 61340 has 479 residents and 211 households (average 2.27 persons per household). The median age is 41.1 years, slightly older than the state (38.8) and slightly older than the nation (38.8). The gender split is 49.3% male and 50.7% female, which is about the same as the state male share (49.0%), making this a female-majority area. Largest groups are White (91.2%, much higher than the state average of 61.4% and well above the national average of 61.6%) and Hispanic or Latino (5.0%); Hispanic or Latino residents make up 5.0%, which is much lower than the national average (18.7%).
Explore More:Population Over TimeBy Age & GenderBy RaceBy GenderNativity & Citizenship
| 2020 Population: | 479Source: Census DHC |
| 2024 ACS Population Estimate: | 545Source: Census ACS |
| 2026 ZC Population Estimate: | 0Source: ZIP-Codes.com |
| Population Density: | 549.3 people per sq mile |
| Average Income: | $78,750Source: Census ACS |
| Households: | 211Source: Census DHC |
| Average House Value: | $160,100Source: Census ACS |
| Persons Per Household: | 2.27Source: Census DHC |
| Average Family Size: | 2.59Source: Census ACS |
| Group | 2010 | 2011 | 2102 | 2013 | 2014 | 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Census ACS Population Estimate | -- | 392 | 371 | 355 | 334 | 292 | 205 | 250 | 245 | 263 | 373 | 476 | 480 | 497 | 545 |
| Decennial Census | 292 | -- | -- | -- | -- | -- | -- | -- | -- | -- | 479 | -- | -- | -- | -- |
Median Age: 41.1
Male Median Age: 42.5
Female Median Age: 38.5
| 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 | 11 | 17 | 12 | 15 | 8 | 19 | 17 | 9 | 19 | 13 | 24 | 14 | 19 | 15 | 11 | 7 | 5 | 1 |
| Female | 12 | 18 | 15 | 16 | 8 | 17 | 20 | 19 | 16 | 14 | 16 | 24 | 17 | 7 | 6 | 9 | 3 | 6 |
| Total | 23 | 35 | 27 | 31 | 16 | 36 | 37 | 28 | 35 | 27 | 40 | 38 | 36 | 22 | 17 | 16 | 8 | 7 |
| White: | 437 | 92.78% |
| Black: | 1 | 0.21% |
| Hispanic:* | 24 | 5.10% |
| Asian: | 0 | 0% |
| American Indian: | 1 | 0.21% |
| Hawaiian: | 0 | 0% |
| Other: | 8 | 1.70% |
| Total: | 471 | 100% |
| Gender | Count | % | Median Age |
|---|---|---|---|
| Males: | 236 | 49.27% | 42.5 years |
| Females: | 243 | 50.73% | 38.5 years |
| Total: | 479 | 100% | 41.1 years |
| Native, born in the United States: | 532 | 97.61% |
| Native, born in PR, Island Areas, or abroad: | 4 | 0.73% |
| Foreign born, naturalized U.S. citizen: | 3 | 0.55% |
| Foreign born, not a U.S. citizen: | 6 | 1.65% |
| Total Population: | 545 | 100% |
| Total Native Population: | 536 | 98.35% |
| Total Foreign-born Population: | 9 | 1.65% |
In 2024, the Median household income is $78,750, which is slightly below the national median ($80,734), is up $22,500 (40.0%) since 2011 and above its 2019 pre-pandemic level by $8,214. Family households earn a median of $83,000 versus $39,615 for nonfamily households (a difference of $43,385). By gender, male median income is $79,375 and female is $60,521, which is much higher than the national female median ($55,274), with a current gap of $18,854 that has narrowed from 2011 to 2024. The labor-force participation rate is 64.4%, which is about the same as the national rate (63.5%). The unemployment rate is 2.6%, which is markedly below the national rate (5.2%). The largest occupation group is Management (28.5%).
Explore More:Income Over TimeHousehold IncomeEmployment StatusBy Occupation
| Income Type | 2011 | 2012 | 2013 | 2014 | 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Median Household Income | $56,250 | $66,875 | $56,250 | $69,375 | $51,458 | $50,750 | $52,917 | $77,708 | $70,536 | $71,458 | $66,750 | $80,357 | $79,286 | $78,750 |
| Median Family Income | $65,313 | $80,536 | $82,679 | $91,667 | $81,250 | $85,938 | $101,250 | $101,250 | $100,625 | $99,750 | $100,417 | $93,750 | $93,125 | $83,000 |
| Median NonFamily Income | $50,000 | $20,417 | $20,313 | $20,250 | $27,656 | $25,250 | $26,875 | $28,750 | $31,458 | $34,167 | $38,750 | $43,750 | $41,786 | $39,615 |
| Median Male Income | $47,250 | $46,750 | $52,917 | $46,000 | $0 | $58,281 | $61,500 | $71,528 | $72,321 | $66,932 | $68,393 | $73,438 | $76,087 | $79,375 |
| Median Female Income | $18,750 | $26,125 | $26,250 | $26,071 | $0 | $28,750 | $45,000 | $38,750 | $31,250 | $56,382 | $44,583 | $46,563 | $53,281 | $60,521 |
| Employed: | 263 | 62.77% |
| Unemployed: | 7 | 1.67% |
| Not In Labor Force: | 149 | 35.56% |
| Total: | 419 | 100% |
| Management, business, science, and arts: | 75 | 28.52% |
| Service: | 41 | 15.59% |
| Sales and Office: | 72 | 27.38% |
| Natural resources, construction, and maintenance: | 13 | 4.94% |
| Production, transportation, and material moving: | 62 | 23.57% |
| Total Civilian Employed Population: | 263 | 100% |
In 2024, the median home value is $160,100, which is much lower than the national median ($332,700), is up $23,600 (17.29%) since 2011 and above its 2019 pre-pandemic level by $50,500. The median gross rent is $938, which is much lower than the national median ($1,413), is up $102 (12.20%) since 2011 and above its 2019 pre-pandemic level by $175. Of occupied housing, owners make up 73.46% (48.17% with a mortgage, 51.83% free-and-clear) and renters 26.54% - making this ZIP Code under national rental averages. The vacancy rate is 10.96%, which is considerably higher than the national rate (10.12%).
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 | 2024 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Median Home Value | $136,500 | $128,100 | $119,300 | $154,500 | $117,500 | $96,000 | $120,300 | $126,800 | $109,600 | $145,300 | $135,900 | $150,500 | $153,600 | $160,100 |
| Less than $500: | 0 | 0.00% |
| $500 to $999: | 50 | 72.46% |
| $1,000 to $1,499: | 19 | 27.54% |
| $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: | 0 | 0.00% |
| Total: | 69 | 100% |
| Group | 2011 | 2102 | 2013 | 2014 | 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Median Rent | $836 | $850 | $817 | $625 | $588 | $616 | $625 | $644 | $763 | $678 | $807 | $814 | $856 | $938 |
| Owner Occupied (with mortgage): | 92 | 35.38% |
| Owner Occupied (free and clear, no mortgage): | 99 | 38.08% |
| Renter Occupied: | 69 | 26.54% |
| Total Occupied Housing Units: | 260 | 100% |
| Occupied Housing Units: | 260 | 89.04% |
| Vacant Housing Units (not graphed): | 32 | 10.96% |
| Total Housing Units: | 292 | 100% |
| Single-Family Units: | 276 | 94.52% |
| Multi-Family Units: | 16 | 5.48% |
| Other Units: | 0 | 0.00% |
| Total Housing Units: | 292 | 100% |
In 2024, 21.00% of adults (25+) have a bachelor's degree or higher, which is far lower than the national rate (35.70%). High school or higher is 96.20%, which is far higher than the national rate (89.60%). The uninsured rate is 1.30%, which is far lower than the national rate (8.40%). The share of people in poverty is 9.40%, which is comparable to the national rate (8.80%), down 1.60 percentage points since 2011 and above its 2019 pre-pandemic level by 1.10 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 (62.94%). College enrollment is 4.20%, which is far lower than the national rate (26.70%), indicating the community may be more oriented toward vocational/trade or direct-to-workforce opportunities.
Explore More:Educational AttainmentHealth InsurancePoverty Over TimeSchool Enrollment
| Less than 9th grade: | 0 | 0.00% |
| 9th to 12th grade, no diploma: | 15 | 3.84% |
| High school graduate (includes equivalency): | 140 | 35.81% |
| Some college, no degree: | 97 | 24.81% |
| Associate's degree: | 57 | 14.58% |
| Bachelor's degree: | 68 | 17.39% |
| Graduate or professional degree: | 14 | 3.58% |
| Total: | 391 | 100% |
| High school or higher: | 376 | 96.16% |
| Bachelor's degree or higher: | 82 | 20.97% |
| Private Insurance: | 426 | 70.76% |
| Public Insurance: | 169 | 28.07% |
| No Insurance: | 7 | 1.16% |
| Total: | 602 | 100% |
| Has Health Insurance: | 595 | 98.84% |
| Group | 2011 | 2102 | 2013 | 2014 | 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| % of People in Poverty | 7.1% | 3.1% | 5.2% | 6.5% | 6.4% | 0.0% | 5.4% | 4.4% | 4.4% | 2.9% | 5.3% | 4.1% | 5.5% | 9.4% |
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: | 13 | 9.09% |
| Kindergarten: | 0 | 0.00% |
| Elementary school (grades 1-8): | 90 | 62.94% |
| High school (grades 9-12): | 34 | 23.78% |
| College or graduate school: | 6 | 4.20% |
| Total: | 143 | 100% |
| Early Childhood: | 13 | 9.09% |
| K-12 (Primary & Secondary School): | 124 | 86.71% |
ZIP Code 61340 supports both business and residential activity. According to the Business Census (2024), there are 10 business establishments, employing about 234 people with an annual payroll of $13,138,000.
| # Residential Mailboxes: | 0Source: USPS |
| # Business Mailboxes: | 0Source: USPS |
| Total Delivery Receptacles: | 186Source: USPS |
| Single Family Delivery Units: | 0Source: USPS |
| Multi Family Delivery Units: | 0Source: USPS |
| # of Businesses: | 10Source: CBP |
| 1st Quarter Payroll: | $3,050,000Source: CBP |
| Annual Payroll: | $13,138,000Source: CBP |
| # of Employees: | 234Source: CBP |
ZIP Code 61340 is located in Putnam County, Illinois, within the Ottawa, IL Metropolitan Statistical Area (CBSA 36837) and Illinois's 14th Congressional District. This Micro area has a population of 0 people, about 0.00% of whom live in ZIP Code 61340. It covers 0.872 sq mi of land and a water area of 0 sq mi.
| CBSA Name: | Ottawa, ILSource: Census |
| CBSA Number: | 36837Source: Census |
| CBSA Type: | MicroSource: Census |
| CBSA Division: | --Source: Census |
| CBSA Population: | 0Source: Census |
| MSA: | Source: Census |
| Land Area: | 0.872 sq miSource: Census |
| Water Area: | --Source: Census |
| Congressional District: | 14Source: USPS |
| Congressional Land Area: | 1597.6 sq miSource: Census |
| PMSA: | Source: Census |
| Intro Date: | < 2004-10Source: ZIP-Codes.com |
| Place FIPS Code: | 1746981Source: Census |
| Place Name: | Mark village; IllinoisSource: Census |
We could not locate which school district 61340 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 February 1, 2026.