Median Income
$57,500
23% lower than US avg
Home Value
$97,500
65% lower than US avg
Violent Crime
311/100K
18% lower than US avg
Bachelor's+
10.6%
69% lower than US avg
Median Rent
$783
33% lower than US avg
Obesity Rate
37.4%
17% higher than US avg
Unemployment
3.3%
8% lower than US avg
Poverty Rate
14.5%
17% higher than US avg
How St. Mary Compares to the U.S. Average (100% = U.S. avg)
People
Population255
Median Age52.2 yrs
Density425/mi²
Male / Female47% / 53%
Largest GroupWhite 81%
Veterans12.1%
Economy
B+
Median Income$57,500
Per Capita$23,554
Unemployment3.3%
Poverty14.5%
Commute37 min
Housing
A+
Home Value$97,500
Rent$783
Ownership75.0%
Zillow$221,600
Housing Units162
Rent Burden32.0%
Crime
F
Violent311/100K
Property1,794/100K
Health
Obesity37.4%
Uninsured9.6%
Smoking18.2%
Depression26.2%
Heart Disease5.8%
Climate
Avg Temp56°F (13°C)
AQI41 (Good)
Rain41.8 in/yr
Sunny Days260/yr
Elevation453 ft (138 m)
Education
D
Bachelor's+10.6%
High School+72.9%
Graduate+8.8%
School Score5.51
Community
2024 VoteR 77% / D 22%
Commute37 min
Broadband100.0%
EV Stations1
Is St. Mary a Good Place to Live?
Based on current data, St. Mary receives an overall livability score of 2.8 out of 5.0, earning a grade of C+. Key strengths include low unemployment, affordable housing, abundant sunshine, strong internet connectivity. Areas to be aware of include below-average incomes, long commute times. St. Mary has some notable strengths but also faces challenges that prospective residents should consider.
Economy & Jobs
The median household income in St. Mary is $57,500, 23% below the national average of $75,149. Unemployment stands at 3.3%, indicating a healthy job market. 14.5% of residents live in poverty, near the national average of 12.4%. Workers commute an average of 37 minutes, longer than the typical American commute of 28 minutes.
Cost of Living & Housing
The median home value in St. Mary is $97,500, 65% below the national median / offering relatively affordable homeownership. Renters pay a median of $783 per month, below the national average / a plus for affordability. At just 1.7x median income, home prices are very affordable relative to local earnings.
Safety & Crime
Violent crime in St. Mary is below the national average at 311 per 100,000 residents (U.S. avg: 380). Property crime occurs at a rate of 1,794 per 100,000, near the national average.
Education
10.6% of residents hold a bachelor's degree, below the national average of 33.7%. 72.9% have completed high school. Area schools have an average test score of 5.5/10.
Climate & Weather
St. Mary enjoys a moderate climate with an average annual temperature of 56°F. Winters average 30°F in January while summers reach 78°F in July. With 260 sunny days per year, residents enjoy well above the national average of sunshine. Annual precipitation totals 41.8 inches. Air quality is rated Good with a median AQI of 41.
St. Mary has a population of 255 with a density of 425 people per square mile, spread across 0.6 square miles. The median age is 52.2 years, 34% older than the national median of 38.9. The gender split is 53.3% female and 46.7% male. The city is predominantly White (81.2%), with 1.2% Hispanic, 8.6% Black. English is the primary language spoken at home by 98.2% of residents. 12.1% of the population are veterans, above the national rate of 6.0%. 27.9% of residents have a disability (above the 13.0% national average). 86.3% have health insurance coverage.
Population
52.2yrs
Median Age
34% above US avg
Language Spoken at Home
English Only
98.2%
25% above US avg
Spanish
1.8%
87% below US avg
The median household income in St. Mary is $57,500, which is 23% below the national average of $75,149. Per capita income is $23,554 (below the $39,052 national figure). The unemployment rate is 3.3% (below the 3.6% US average). 14.5% of residents live below the poverty line, higher than the national rate of 12.4%. The cost of living index is 90.8, below the national baseline of 100 / offering relatively affordable living. Workers commute an average of 37 minutes (longer than the 28-minute US average). 0.0% of workers work from home (below the 15.2% national rate).
Income
| Median HH Income | $57,500 |
| 23% below US avg |
| Per Capita Income | $23,554 |
Employment & Poverty
| Unemployment | 3.3% |
| 8% below US avg |
| Poverty Rate | 14.5% |
| 17% above US avg |
Tax & Cost of Living
| |
| Cost of Living | 90.80 (100=avg) |
Commute & Transportation
| Commute Time | 36.6 min |
| Drive Alone | 90.8% |
| Public Transit | 0.0% |
| Work from Home | 0.0% |
The median home value in St. Mary is $97,500, 65% below the national median of $281,900. Zillow estimates the typical home value at $221,600, higher than the Census estimate. Monthly rent averages $783 (33% below the national average of $1,163). Fair market rent ranges from $775 for a one-bedroom to $970 for a two-bedroom apartment. 75.0% of housing units are owner-occupied (above the 65.4% national rate). There are 162 total housing units in the city. The median year a home was built is 1954. 32.0% of renters spend 30% or more of their income on housing. The home price-to-income ratio is 1.7x, well within the affordable range.
Home Values
| Census Median | $97,500 |
| 65% below US avg |
| Zillow ZHVI | $221,600 |
Real Estate Market (Redfin)
Rental Costs
| Census Median Rent | $783 |
| 33% below US avg |
| Rent Burden | 32.0% |
HUD Fair Market Rent
| Studio | $732 |
| 1 Bedroom | $775 |
| 2 Bedrooms | $970 |
| 3 Bedrooms | $1,265 |
| 4 Bedrooms | $1,457 |
Ownership & Property
| Homeownership | 75.0% |
| Owner-Occupied | 75.0% |
| Renter-Occupied | 25.0% |
| Housing Units | 162 |
| Median Year Built | 1954 |
Property Tax
In St. Mary, 37.4% of adults are obese, above the national rate of 32.1%. 9.9% have diabetes. Heart disease affects 5.8% of residents. 33.3% have high blood pressure. 18.2% are current smokers (above the 14.0% national rate). 18.8% report binge drinking. 28.9% are physically inactive, above the national average. 26.2% report depression (above the 20.0% national average). 19.5% experience frequent mental distress. 9.6% of residents lack health insurance.
Health Metrics: St. Mary vs U.S. Average (%)
Chronic Conditions
| Obesity | 37.4% |
| 17% above US avg |
| Diabetes | 9.9% |
| Heart Disease | 5.8% |
| High Blood Pressure | 33.3% |
| Asthma | 10.9% |
| COPD | 7.6% |
| Cancer | 7.4% |
| Stroke | 3.1% |
Behaviors & Mental Health
| Smoking | 18.2% |
| 30% above US avg |
| Binge Drinking | 18.8% |
| Physical Inactivity | 28.9% |
| Depression | 26.2% |
| Mental Distress | 19.5% |
| Physical Distress | 14.4% |
| Short Sleep | 39.9% |
Healthcare Access
| Insurance Rate | 86.3% |
| Uninsured | 9.6% |
| 12% above US avg |
| Checkup Rate | 75.3% |
| Dental Visits | 57.1% |
Food & Exercise
St. Mary has a violent crime rate of 311 per 100,000 residents, 18% below the national average of 380. Property crime stands at 1,794 per 100,000, 8% below the U.S. average. Overall, St. Mary receives a safety grade of F.
Crime Rates: St. Mary vs U.S. Average (per 100,000)
Violent Crime
| Total Violent | 311.0/100K |
| 18% below US avg |
| |
Property Crime
| Total Property | 1,794.5/100K |
| 8% below US avg |
Traffic Safety
| Avg Accident Severity | 0.0 / 4.0 |
Safety Score
| Safety Grade | F |
| Safety Score | 1.0 / 5.0 |
St. Mary enjoys a temperate climate with an average annual temperature of 56°F (13°C). Winters average 30°F in January while summers reach 78°F in July. The area gets 260 sunny days per year, above the national average. Annual precipitation totals 41.8 inches. The area receives 4.7 inches of snow annually. Air quality is rated Good with a median AQI of 41. The city sits at an elevation of 453 feet.
Temperature
30°F Jan (-1°C)
78°F Jul (26°C)
| Annual Average | 55.8°F |
| 3% above US avg |
| January Average | 30°F (-1°C) |
| July Average | 78°F (26°C) |
| Sunny Days | 260 days/yr |
Geography
| Elevation | 453 ft (138 m) |
| Area | 0.6 sq mi (1.6 km²) |
| Population Density | 425/sq mi |
| Coordinates | 37.8726°N, 89.9465°W |
| Timezone | America/Chicago |
| Nearest Airport | Farmington Regional (FAM)
25 miles away |
Precipitation & Snow
Annual Rainfall
41.8"
10% above US avg
Wettest Month (May)
4.29"
Air Quality
| AQI Median | 41.0 |
| Rating | Good |
Earthquake History
166 earthquakes (M2.5+) within 150 km since 1990.
Strongest: M4.8. Most recent: M2.7 on May 2, 2025.
| Sep 26, 1990 |
4 km SE of Chaffee, Missouri |
M4.8 |
85 km |
| May 4, 1991 |
2 km NNW of Risco, Missouri |
M4.5 |
145 km |
| Feb 5, 1994 |
2 km WNW of Dongola, Illinois |
M4.2 |
87 km |
| Jun 6, 2003 |
1 km NE of Bardwell, Kentucky |
M4.0 |
139 km |
| Jun 7, 2011 |
18 km NNW of Potosi, Missouri |
M3.9 |
87 km |
| Feb 21, 2012 |
4 km SSE of Bertrand, Missouri |
M3.9 |
120 km |
| Mar 2, 2010 |
2 km ENE of East Prairie, Missouri |
M3.7 |
131 km |
| Jan 2, 2006 |
3 km NNE of Eldorado, Illinois |
M3.6 |
134 km |
| Jun 20, 2005 |
4 km WSW of Blandville, Kentucky |
M3.6 |
135 km |
| Sep 22, 2011 |
6 km E of Grandin, Missouri |
M3.6 |
137 km |
| Mar 15, 2017 |
9 km ESE of Wyatt, Missouri |
M3.6 |
132 km |
| Jul 16, 2004 |
6 km SE of Wyatt, Missouri |
M3.5 |
131 km |
| May 1, 2016 |
5 km SE of New Grand Chain, Illinois |
M3.5 |
112 km |
| Jun 15, 2004 |
3 km S of Canalou, Missouri |
M3.5 |
130 km |
| Sep 26, 1994 |
4 km ENE of Blandville, Kentucky |
M3.4 |
136 km |
| Mar 2, 1990 |
9 km NW of Vernon, Illinois |
M3.4 |
128 km |
| Aug 27, 1993 |
5 km SSE of Olympian Village, Missouri |
M3.3 |
49 km |
| Feb 6, 1993 |
6 km NNW of Catron, Missouri |
M3.3 |
136 km |
| Sep 27, 2019 |
4 km WSW of Howardville, Missouri |
M3.3 |
149 km |
| May 16, 2017 |
9 km ESE of Wyatt, Missouri |
M3.3 |
133 km |
Source: USGS (M2.5+, 1990–2025)
Tornado History
594 tornadoes (EF0+) within 100 km since 1950.
Strongest: EF5. Total: 94 fatalities, 1,291 injuries.
| Date |
Rating |
Distance |
Fatalities |
| Dec 18, 1957 |
EF5 |
65 km |
1 |
| Feb 28, 2017 |
EF4 |
17 km |
1 |
| Nov 17, 2013 |
EF4 |
75 km |
2 |
| Sep 22, 2006 |
EF4 |
24 km |
0 |
| May 29, 1982 |
EF4 |
72 km |
10 |
| Apr 3, 1981 |
EF4 |
96 km |
0 |
| Jun 22, 1969 |
EF4 |
55 km |
4 |
| Feb 10, 1959 |
EF4 |
93 km |
21 |
| Dec 18, 1957 |
EF4 |
88 km |
1 |
| Dec 18, 1957 |
EF4 |
45 km |
11 |
| May 26, 2024 |
EF3 |
88 km |
0 |
| Dec 10, 2021 |
EF3 |
99 km |
6 |
| Oct 24, 2021 |
EF3 |
45 km |
0 |
| Oct 24, 2021 |
EF3 |
54 km |
0 |
| Nov 17, 2013 |
EF3 |
97 km |
0 |
| Dec 31, 2010 |
EF3 |
83 km |
1 |
| Mar 11, 2006 |
EF3 |
43 km |
0 |
| Mar 11, 2006 |
EF3 |
8 km |
2 |
| May 6, 2003 |
EF3 |
60 km |
0 |
| Apr 28, 2002 |
EF3 |
78 km |
1 |
Source: NOAA SPC (EF0+, 1950–2024)
Wildfire History
20 wildfires (100+ acres) within 100 km.
Largest: SMITH MILL HOLLOW (3,978 ac, 2022).
| Year |
Name |
Acres |
Distance |
| 2022 |
SMITH MILL HOLLOW |
3,978 |
93 km |
| 2021 |
COUNCIL BLUFF |
3,035 |
89 km |
| 2024 |
COUNCIL BLUFF WEST RX |
2,846 |
89 km |
| 2005 |
UNNAMED |
2,751 |
90 km |
| 2019 |
UNNAMED |
2,688 |
98 km |
| 2010 |
COUNCIL BLUFF LAKE |
2,651 |
89 km |
| 2006 |
UNNAMED |
2,512 |
89 km |
| 2021 |
RED SHALE UNIT RX |
2,123 |
79 km |
| 2021 |
BEAR PAW |
2,080 |
95 km |
| 2024 |
BEAR PAW RX |
2,067 |
95 km |
| 2004 |
CICERO CREEK |
1,846 |
95 km |
| 2021 |
BERRYMAN BLOCK B AND C |
1,728 |
98 km |
| 2015 |
CARTY |
1,674 |
98 km |
| 2014 |
UNNAMED |
1,627 |
75 km |
| 2019 |
ATWOOD RIDGE RX |
1,622 |
75 km |
| 2015 |
UNNAMED |
1,586 |
89 km |
| 2010 |
DELBRIDGE SOUTH |
1,574 |
90 km |
| 2000 |
UNNAMED |
1,552 |
65 km |
| 1999 |
UNNAMED |
1,483 |
65 km |
| 2020 |
UNNAMED |
1,334 |
90 km |
Source: NIFC/IRWIN (100+ acres)
Monthly Weather
| Month |
Avg Temperature |
Precipitation |
Summary |
| January |
30°F (-1°C) |
2.2 in |
Coldest, Driest |
| February |
35°F (2°C) |
2.5 in |
|
| March |
45°F (7°C) |
4.1 in |
|
| April |
56°F (13°C) |
3.8 in |
|
| May |
65°F (19°C) |
4.3 in |
Wettest |
| June |
74°F (23°C) |
3.7 in |
|
| July |
78°F (26°C) |
4.0 in |
Warmest |
| August |
76°F (25°C) |
3.5 in |
|
| September |
70°F (21°C) |
3.5 in |
|
| October |
58°F (15°C) |
2.9 in |
|
| November |
46°F (8°C) |
4.0 in |
|
| December |
36°F (2°C) |
3.5 in |
|
St. Mary has a seasonal temperature swing of 48°F / from 30°F in January to 78°F in July. Total annual precipitation is 41.8 inches, with May being the wettest month (4.3") and January the driest (2.2").
Average costs for common services in St. Mary. Prices are estimated based on regional cost of living data and may vary by provider.
Healthcare
| Doctor Visit (Primary Care) |
$227 ($136–$363) |
| Specialist Visit |
$318 ($182–$499) |
| Urgent Care Visit |
$182 ($91–$318) |
| Emergency Room Visit |
$1,998 ($726–$4,540) |
| Dental Cleaning |
$118 ($68–$182) |
| Dental Filling |
$227 ($136–$363) |
View all 40 services
Auto Repair
| Oil Change (Conventional) |
$41 ($23–$68) |
| Oil Change (Synthetic) |
$68 ($45–$109) |
| Brake Pad Replacement |
$272 ($136–$454) |
| Tire Rotation |
$36 ($18–$68) |
| New Tires (Set of 4) |
$545 ($363–$908) |
| Battery Replacement |
$182 ($91–$318) |
View all 18 services
Home Services
| Plumber (Per Hour) |
$91 ($54–$136) |
| Electrician (Per Hour) |
$82 ($45–$127) |
| HVAC Repair |
$363 ($136–$726) |
| HVAC System Install |
$6,356 ($3,632–$10,896) |
| Roof Repair |
$908 ($363–$1,816) |
| Roof Replacement |
$8,172 ($4,994–$13,620) |
View all 25 services
Legal
| Divorce (Uncontested) |
$1,362 ($454–$3,178) |
| Divorce (Contested) |
$13,620 ($4,540–$27,240) |
| DUI Defense |
$4,540 ($1,816–$9,080) |
| Bankruptcy (Chapter 7) |
$1,362 ($726–$2,724) |
| Will Preparation |
$454 ($182–$908) |
| Trust Preparation |
$2,270 ($908–$4,540) |
View all 12 services
Personal Care
| Men's Haircut |
$23 ($14–$41) |
| Women's Haircut |
$50 ($27–$91) |
| Hair Coloring (Full) |
$136 ($68–$227) |
| Manicure |
$23 ($14–$41) |
| Pedicure |
$36 ($23–$59) |
| Massage (1 Hour) |
$73 ($45–$118) |
View all 12 services
Food & Grocery
| Gallon of Milk (per gallon) |
$3.72 ($2.72–$4.99) |
| Dozen Eggs (per dozen) |
$3.18 ($2.27–$4.54) |
| Loaf of Bread |
$3.45 ($2.27–$4.99) |
| Chicken Breast (per lb) |
$4.09 ($2.72–$5.90) |
| Ground Beef (per lb) |
$4.99 ($3.63–$6.81) |
| Rice (per lb) |
$0.91 ($0.54–$1.63) |
View all 20 services
Utilities
| Electricity (Monthly) |
$127 ($73–$227) |
| Natural Gas (Monthly) |
$64 ($27–$136) |
| Water/Sewer (Monthly) |
$64 ($36–$109) |
| Internet (Monthly) |
$64 ($36–$91) |
| Cell Phone Plan (Monthly) |
$59 ($27–$91) |
| Cable TV (Monthly) |
$77 ($45–$136) |
View all 8 services
Transportation
| Monthly Parking (Downtown) |
$182 ($68–$454) |
| Car Insurance (Annual) |
$1,816 ($1,090–$3,178) |
| Bus Pass (Monthly) |
$64 ($27–$118) |
| Taxi/Uber (5-Mile Ride) |
$14 ($7.26–$23) |
| Car Registration (Annual) |
$91 ($27–$227) |
| Driver's License Renewal |
$27 ($14–$68) |
View all 8 services
Education & Childcare
| Daycare (Infant, Monthly) |
$1,090 ($545–$2,270) |
| Daycare (Toddler, Monthly) |
$908 ($454–$1,816) |
| After-School Care (Monthly) |
$363 ($182–$636) |
| Tutoring (Per Hour) |
$45 ($23–$91) |
| SAT/ACT Prep Course |
$908 ($363–$2,270) |
| Private School (K-12, Annual) |
$11,350 ($4,540–$27,240) |
View all 8 services
Pets
| Vet Visit (Routine Checkup) |
$54 ($27–$91) |
| Dog Vaccination (Annual) |
$91 ($45–$182) |
| Dog Grooming |
$54 ($27–$91) |
| Pet Boarding (Per Night) |
$36 ($18–$68) |
| Dog Spay/Neuter |
$272 ($136–$454) |
| Cat Spay/Neuter |
$182 ($91–$363) |
View all 9 services
Frequently Asked Questions About St. Mary
What is the population of St. Mary?
St. Mary has a population of 255 residents and is located in Missouri. The population density is 425 people per square mile, spread across 0.6 square miles. The median age of residents is 52.2 years, which is older than the national median of 38.9 years. The population is 53.3% female and 46.7% male.
Is St. Mary expensive to live in?
St. Mary is more affordable than the national average, with a cost of living index of 90.8 / below the baseline of 100. The median household income is $57,500, 23% below the national average of $75,149. The median home value is $97,500 (65% below the U.S. median). Renters pay a median of $783 per month, below the national average of $1,163. The home price-to-income ratio is 1.7x, indicating housing is reasonably affordable relative to local income levels.
Is St. Mary safe?
St. Mary is safer than the national average, with a violent crime rate of 311 per 100,000 compared to the U.S. rate of 380. Property crime occurs at a rate of 1,794 per 100,000 (below the national average). Overall, St. Mary receives a safety grade of F based on combined crime data.
What is the weather like in St. Mary?
St. Mary enjoys a temperate climate with an average annual temperature of 56°F (13°C). Winter temperatures average 30°F in January, while summers reach an average of 78°F in July. The area receives 260 sunny days per year, well above the national average of 205. Annual rainfall totals 41.8 inches, with 4.7 inches of snow. Air quality is rated Good with a median Air Quality Index (AQI) of 41.
How is the job market in St. Mary?
St. Mary has a healthy job market with an unemployment rate of 3.3%, near the national average of 3.6%. The average commute time is 37 minutes, and 0.0% of workers work from home.
How much does housing cost in St. Mary?
The median home value in St. Mary is $97,500. Zillow estimates the typical home value at $221,600. For renters, the median monthly rent is $783. Fair market rent is $775 for a 1-bedroom and $970 for a 2-bedroom apartment. The homeownership rate is 75.0%.
How are the schools in St. Mary?
Schools in St. Mary score 5.5 out of 10 on standardized testing, near the national average. 10.6% of adults in St. Mary hold a bachelor's degree or higher, below the national average of 33.7%. 72.9% have completed high school. 8.8% hold a graduate or professional degree.
How healthy is St. Mary?
The obesity rate in St. Mary is 37.4% (above the national rate of 32.1%). 18.2% of adults are smokers. 28.9% are physically inactive. 26.2% of residents report depression. 9.6% lack health insurance.
What is transportation like in St. Mary?
The average commute in St. Mary is 37 minutes, longer than the national average of 28 minutes. 90.8% of workers drive alone to work, and 0.0% work from home.
What are the demographics of St. Mary?
The racial and ethnic makeup of St. Mary is 81.2% White, 8.6% Black or African American, 1.2% Hispanic or Latino. 98.2% of residents speak only English at home. 12.1% of the population are military veterans. 27.9% of residents have a disability. 86.3% have health insurance coverage.
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