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Mark, IL
Full City Profile · Illinois · Putnam County County
3.4
/5.0
B
Good
522
Population
488/sq mi density
$79,911
Median Income
$40,987 per capita
$154,800
Home Value
$157,931 Zillow
$856
Median Rent
19.1% income on rent
51°F
Avg Temperature
282 sunny days/yr
171
Violent Crime/100K
627 property/100K
B
Overall
3.4 / 5.0
Good overall score based on economy, affordability, safety and education
A+
Economy
4.6 / 5.0
$79,911 median income, 0.9% unemployment
A+
Affordability
5.0 / 5.0
$154,800 home value, $856/mo rent
F
Safety
1.0 / 5.0
171 violent crimes/100K
C+
Education
2.8 / 5.0
22.7% bachelor's degree or higher
Change Over Time (2013–2023)
Population Change
-9.8%
562 → 507
over 10 years
Annual Pop. Growth
-1.02%
Compound annual growth rate
Median Income Change
+57.4%
$50,764 → $79,911
nominal, not inflation-adjusted
Annual Income Growth
+4.64%
Compound annual growth rate
Population Over Time
Total population for Mark across each available Census ACS release.
Median Household Income Over Time
Median household income reported by U.S. Census ACS. Values are nominal (not adjusted for inflation).
Projected 2030
Simple projections extrapolating the 2013–2023 compound annual growth rate forward. These are mathematical extensions of recent trends, not forecasts — real outcomes depend on migration, policy and economic shifts.
Projected Population 2030
472
-35 from 2023 (507)
Projected Median Income 2030
$109,772
+$29,861 from 2023 ($79,911)
Year-by-Year Detail
| Year | Population | YoY % | Median Income | YoY % |
|---|---|---|---|---|
| 2013 | 562 | — | $50,764 | — |
| 2015 | 551 | -2% | $43,558 | -14.2% |
| 2017 | 546 | -0.9% | $51,250 | +17.7% |
| 2019 | 550 | +0.7% | $64,688 | +26.2% |
| 2021 | 508 | -7.6% | $68,333 | +5.6% |
| 2023 | 507 | -0.2% | $79,911 | +16.9% |
Source: U.S. Census ACS 5-Year Estimates (Data Commons). Home value and rent are not yet available historically.