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City in Ontario

Homes for sale in St. Marys

Browse all St. Marys real estate listings in one place: 62 homes for sale in St. Marys, ON, from $174,999 to $4,250,000, with a median asking price of $640,950. Most are detached houses and condo townhouses; 2 were listed in the last 24 hours.

family-friendly quiet community-oriented

7,386 people lived in St. Marys at the 2021 Census, in 3,125 households. 81% of households owned their home and 19% rented. The most common homes were single-detached houses (70%) and low-rise apartments (12%). 55% of homes were built before 1981, and 15% since 2011. 91% of commuters went to work by car and 0% by public transit.

Walkability score: 20
St. Marys, Ontario — HOMEH neighbourhood guide

St. Marys, Ontario

© Wikimedia Commons contributors (CC BY-SA)

At a glance

St. Marys MLS® Listings

Photo of 321 Tracy Street
For Sale
Listed for:

Listed Sep 8, 2026

$600,000

321 Tracy Street

St. Marys, ON N4X 0B4

2Bedrooms
2Bathrooms
1Garage
1.1K-1.5KSq Ft

Freehold TownhouseFor Sale

Photo of 172 Hooper Street
For Sale
Listed for:

Listed Sep 3, 2026

$599,900

172 Hooper Street

St. Marys, ON N4X 0C1

2Bedrooms
2Bathrooms
2Garage
1.1K-1.5KSq Ft

Freehold TownhouseFor Sale

Photo of Unit 21, 275 James Street
For Sale
Listed for:

Listed Sep 1, 2026

$569,900

Unit 21, 275 James Street

St. Marys, ON N4X 0C2

3Bedrooms
3Bathrooms
2Parking
2K-2.2KSq Ft

Condo TownhouseFor Sale

Photo of 180 Ridgewood Crescent
For SalePrice ReducedFinished Basement
Listed for:

Listed Aug 27, 2026

$749,000

180 Ridgewood Crescent

St. Marys, ON N4X 1E8

4Bedrooms
4Bathrooms
2Garage
1.5K-2KSq Ft

DetachedFor Sale

Photo of 318 Elizabeth Street
For SalePrice ReducedEV Charger
Listed for:

Listed Aug 24, 2026

$789,000

318 Elizabeth Street

St. Marys, ON N4X 1C8

3Bedrooms
2Bathrooms
3Garage
1.5K-2KSq Ft

DetachedFor Sale

Photo of Unit 3, 144 Southvale Road
For SalePrice ReducedNo Rear Neighbours
Listed for:

Listed Aug 22, 2026

$499,900

Unit 3, 144 Southvale Road

St. Marys, ON N4X 1E9

2 + 1Bedrooms
2Bathrooms
3Parking
1.6K-1.8KSq Ft

Condo TownhouseFor Sale

Photo of 450 Queen Street E
For Sale
Listed for:

Listed Aug 20, 2026

$639,900

450 Queen Street E

St. Marys, ON N4X 1A5

—Bedrooms
0Bathrooms
0Garage
—Sq Ft

Store W Apt/OfficeFor Sale

Photo of 230 Church Street S
For SalePrice ReducedWalk-Out Basement
Listed for:

Listed Aug 19, 2026

$469,900

230 Church Street S

St. Marys, ON N4X 1Z4

2Bedrooms
2Bathrooms
1Garage
700-1.1KSq Ft

DetachedFor Sale

Photo of 35 Thomas Street
For SaleLake View
Listed for:

Listed Aug 13, 2026

$829,900

35 Thomas Street

St. Marys, ON N4X 1A2

2Bedrooms
2Bathrooms
4Garage
1.1K-1.5KSq Ft

DetachedFor Sale

Photo of 1 Park Ln
For SaleAttention Builders
Listed for:

Listed Aug 11, 2026

$174,999

1 Park Ln

St. Marys, ON N4X 0B6

0Bedrooms
0Bathrooms
0Garage
—Sq Ft

Vacant LandFor Sale

Photo of 178 Thomas Street
For SaleFully Renovated
Listed for:

Listed Aug 11, 2026

$599,999

178 Thomas Street

St. Marys, ON N4X 0B6

3Bedrooms
2Bathrooms
0Garage
1.1K-1.5KSq Ft

DetachedFor Sale

Photo of 1772 Perth Road 139
For Sale
Listed for:

Listed Aug 5, 2026

$1,189,000

1772 Perth Road 139

St. Marys, ON N4X 1C8

3 + 1Bedrooms
3Bathrooms
2Garage
1.5K-2KSq Ft

DetachedFor Sale

Photo of 104 Ontario Street S
For Sale
Listed for:

Listed Aug 5, 2026

$639,900

104 Ontario Street S

St. Marys, ON N4X 1C2

3Bedrooms
2Bathrooms
1Garage
1.1K-1.5KSq Ft

DetachedFor Sale

Photo of Unit 1C, 189 Elizabeth Street
For Sale
Listed for:

Listed Aug 1, 2026

$698,000

Unit 1C, 189 Elizabeth Street

St. Marys, ON N4X 0B5

2Bedrooms
2Bathrooms
2Parking
1.4K-1.6KSq Ft

Condo ApartmentFor Sale

Photo of 237 Thomas Street
For SaleEstate SaleWaterfront
Listed for:

Listed Jul 30, 2026

$449,900

237 Thomas Street

St. Marys, ON N4X 1C2

3Bedrooms
1Bathroom
0Garage
1.5K-2KSq Ft

DetachedFor Sale

Photo of 5132 10 Line
For SaleLarge Lot
Listed for:

Listed Jul 17, 2026

$975,000

5132 10 Line

St. Marys, ON N4X 1C4

5Bedrooms
2Bathrooms
2Garage
2K-2.5KSq Ft

DetachedFor Sale

Photo of 293 Wellington Street S
For SaleFully RenovatedHot Tub
Listed for:

Listed Jul 15, 2026

$699,900

293 Wellington Street S

St. Marys, ON N4X 1C5

3Bedrooms
3Bathrooms
0Garage
1.5K-2KSq Ft

DetachedFor Sale

Photo of 128 Park Street
For SalePrice ReducedCorner Lot
Listed for:

Listed Jul 15, 2026

$749,000

128 Park Street

St. Marys, ON N4X 0C1

6Bedrooms
4Bathrooms
7Parking
3K-3.5KSq Ft

MultiplexFor Sale

Photo of Unit 13, 165 Egan Avenue
For SaleFinished Basement
Listed for:

Listed Jul 14, 2026

$539,900

Unit 13, 165 Egan Avenue

St. Marys, ON N4X 0C9

2 + 1Bedrooms
3Bathrooms
1Garage
1K-1.2KSq Ft

Vacant LandFor Sale

Photo of 19 Trailside Drive
For Sale
Listed for:

Listed Jul 13, 2026

$555,000

19 Trailside Drive

St. Marys, ON N4X 0C1

3Bedrooms
2Bathrooms
1Garage
1.1K-1.5KSq Ft

Freehold TownhouseFor Sale

Photo of 84 Church Street N
For SaleBasement ApartmentLarge Lot
Listed for:

Listed Jun 30, 2026

$845,900

84 Church Street N

St. Marys, ON N4X 1A3

4Bedrooms
3Bathrooms
7Parking
2.5K-3KSq Ft

MultiplexFor Sale

Photo of 46 Trillium Crescent
For Sale
Listed for:

Listed Jun 23, 2026

$999,900

46 Trillium Crescent

St. Marys, ON N4X 0A2

3Bedrooms
3Bathrooms
2Garage
1.5K-2KSq Ft

DetachedFor Sale

Photo of 113 Edison Street
For SalePrice ReducedIn-Law SuiteFinished Basement
Listed for:

Listed Jun 12, 2026

$579,900

113 Edison Street

St. Marys, ON N4X 0A8

3Bedrooms
3Bathrooms
1Garage
700-1.1KSq Ft

Semi-DetachedFor Sale

Photo of 87 St Andrew Street N
For SaleLarge Lot
Listed for:

Listed Jun 5, 2026

$849,900

87 St Andrew Street N

St. Marys, ON N4X 1A2

3Bedrooms
1Bathroom
0Garage
1.1K-1.5KSq Ft

DetachedFor Sale

Day to dayLivability

20

Walkability

out of 100 · averaged over 939 past and present listings

Average walk score reported on listings here

7.2

Schools near listings

out of 10 · averaged over 939 past and present listings

Fraser Institute ratings within 2 km of each listing, closer schools weighted more

Each score is an average over this area's own listings and is shown only where at least 5 of them carry one. Scores are reported by listing agents, not measured by HOMEH.

What it costsAffordability

Median asking price

$640,950

11% below Ontario

In St. Marys

$640,950

In Ontario

$716,900

Median monthly rent

$1,750/mo

30% below Ontario

In St. Marys

$1,750

In Ontario

$2,499

$534

Per square foot

≈ 30.5 years

Of rent to match the purchase price

On the marketMarket snapshot

For sale

62

Median $640,950

Houses 50 · Condos 12

For rent

2

Median $1,750

Condos 1 · Houses 1

Recently sold

Sign in to see sold data

Recently leased

Sign in to see leased data

Market data as of 2026-08-16. Sold and leased figures are neighbourhood medians over the last 12 months, published only where at least 5 homes closed — never a single sale.

The honest readPros & cons

What people love

  • Lower median sale price than provincial average
  • Quiet and peaceful living environment
  • Access to parks for outdoor activities

Keep in mind

  • Limited public transit options
  • Walkability score is low
  • Few amenities like cafes and libraries

The feel of the placeLifestyle

Daily life in St. Marys is relaxed, with a focus on community and outdoor spaces. Residents enjoy a slower pace with essential services nearby.

Great for first-time buyers families those seeking a peaceful lifestyle

Within the boundaryWhat's nearby

The boundary

12.9 km²

Every count and every census figure on this page was measured inside this line — not within a circle drawn around a centre point.

17

Parks

8

Playgrounds

1

Transit stations

2

Grocery stores

5

Restaurants

3

Cafés

1

Gyms

1

Libraries

2

Pharmacies

Counted across all 12.9 km² of St. Marys. From OpenStreetMap, as of 2026-10-19.

The schoolsWhich schools, and how they rate

7.2/10

Average rating of the 3 rated schools in this area

3

Elementary

1

Secondary

  • St Marys D.C. & V. I. High School

    Public · Grades 9–12 · Avon Maitland DSB

    7.3/106.9 over 5 yrs

    158th of 742 Ontario secondary schools

    430 students · EQAO 2024-2025

  • Holy Name of Mary School

    Catholic · Grades JK–8 · Huron Perth CDSB

    7.1/106.7 over 5 yrs

    808th of 3,045 Ontario elementary schools

    205 students · EQAO 2024-2025

  • Little Falls Public School

    Public · Grades JK–6 · Avon Maitland DSB

    7.1/106.4 over 5 yrs

    808th of 3,045 Ontario elementary schools

    450 students · EQAO 2024-2025

  • St Marys D.C. & V.I. - Elementary

    Public · Grades 7–8 · Avon Maitland DSB

    Not rated

    125 students

Ontario Ministry of Education school registry; ratings from the Fraser Institute report card. These are the schools that stand inside St. Marys, not a catchment — most Ontario boards do not publish attendance boundaries, and we will not draw a line we cannot source. Confirm enrolment with the school board before you buy.

The peopleWho lives here

7,386

Population (2021)

12.4 km²

Area

594

People per km²

48.7

Median age

$86,244

Median income

81%

Own their home

2.3

People per household

3,125

Households

Every age

  • Children (under 15)14.5%
  • Working age (15–64)59.2%
  • Seniors (65+)26.4%

What is built here

  • Detached houses69.6%
  • Semi-detached9.6%
  • Townhouses5.9%
  • Duplexes1.9%
  • Low-rise apartments12%
  • High-rise apartments1.1%

Own or rent

81%Owners

19%Renters

Across 3,125 households

When it was built

Mostly 1960 or earlier

  • 1960 or earlier38%
  • 1961–198017%
  • 1981–19907%
  • 1991–200012%
  • 2001–20055%
  • 2006–20106%
  • 2011–20157%
  • 2016–20218%

Share of occupied homes, by the era they were built in. Bars are drawn against the busiest era, not against each other, because the eras are not the same length. The eight shares are unlikely to total exactly 100: Statistics Canada rounds each era's count to the nearest 5 before publishing it, so we print what the census reports rather than adjusting a figure to make the column add up.

8.4%
Born outside Canada
18.4%
Hold a degree or higher
53.5%
Employment rate
0%
Commute by transit
91%
Commute by car
1.8
Children per family
$76,410
Median income after tax
$100,142
Average household income
7.6%
Living on a low income
$943/mo
Renters pay, per month
$1,053/mo
Owners pay, per month
$498,624
Median home value at census
8.7%
Renters spending 30%+ of income on housing
8.6%
Owners spending 30%+ of income on housing

Statistics Canada, Census of Population 2021. Added up from 12 census areas inside the boundary. Medians and rates are a population-weighted average of dissemination-area figures.

Sources: HOMEH listings, Statistics Canada, Census of Population 2021, OpenStreetMap, HOMEH school registry, Photo: © Wikimedia Commons contributors (CC BY-SA)

HOMEH Market Pulse Through September 2026 Deep sales history

What Homes in St. Marys Actually Sell For

103 homes changed hands in St. Marys over the 12 months to September 2026. Half sold above $558,330 and half below, 7.7% lower than the 12 months before. A typical home found its buyer in 60 days — 25 days slower than a year ago.

Median sold price
$558K
-7.7% year over year
Days to sell
60
25 days slower
Sales closed
103
last 12 months
Per square foot
$413
from 102 sized sales

Three years of sold prices

The line is the median. The band is the middle half of every sale — how wide it runs tells you how much one home here differs from the next.

$982K$768K$554K$339K
Nov ’23Nov ’24Oct ’25Sep ’26
Median sold price Middle half of sales

What buyers actually paid

$972,000

on a $1,000,000 asking price — under ask by $28,000

−10%Asking price+10%
Of the asking price
97.2%
Sold over asking
7.8%

From 103 sales that closed here in the last 12 months.

What actually trades in St. Marys

A single median hides this: the mix of homes behind it, and what each kind costs.

103sales
  • Detached$638K43.7%
  • Other kinds, too few of each —56.3%

How fast it moves

Median days on market, month by month. Taller means slower.

Jun 2024Sep 2026

Terracotta marks the last 12 months.

Every month behind these charts — St. Marys, sales
Monthly closed sales in St. Marys
MonthClosedMedianMiddle halfDays% of ask
Sep 20268$594,250$514K – $675K7197.7%
Aug 202610$645,500$426K – $781K5197.5%
Jul 20268$518,250$417K – $534K3297.9%
Jun 202611$580,000$538K – $726K3497.3%
May 202618$573,750$421K – $651K8095.5%
Apr 202612$539,750$467K – $637K7797.4%
Mar 202612$526,000$384K – $711K6097.8%
Feb 20266$490,000$468K – $595K7297.5%
Jan 20261 Not enough sales this month to report a median
Dec 20255$500,000$453K – $723K8598.7%
Nov 20258$527,450$475K – $743K3397.0%
Oct 20254 Not enough sales this month to report a median
Sep 202513$700,000$590K – $825K3698.4%
Aug 202511$650,000$471K – $735K2298.1%
Jul 202511$655,000$430K – $763K3997.1%
Jun 202514$535,000$482K – $644K5397.9%
May 202514$565,507$484K – $667K1998.9%
Apr 20258$502,500$459K – $572K1698.2%
Mar 202512$557,500$478K – $690K2797.2%
Feb 20255$536,000$410K – $560K13100.0%
Jan 20255$620,000$598K – $680K6498.6%
Dec 20248$641,500$534K – $715K5797.2%
Nov 20244 Not enough sales this month to report a median
Oct 202412$664,500$598K – $686K4798.5%
Sep 202412$803,500$540K – $937K7397.4%
Aug 202420$640,000$537K – $875K3198.8%
Jul 20244 Not enough sales this month to report a median
Jun 20248$602,500$517K – $704K13596.2%
May 202410$527,500$463K – $624K8898.0%
Apr 20246$585,450$455K – $600K61100.3%
Mar 20244 Not enough sales this month to report a median
Feb 20242 Not enough sales this month to report a median
Jan 20241 Not enough sales this month to report a median
Nov 20231 Not enough sales this month to report a median

8 of these months closed fewer than 5 sales. A middle value taken over that few is not a market figure — with one sale it is simply that home's closing price — so the count is shown and the median is not. The sales themselves still count toward the 12-month figures above.

What people ask about St. Marys

How much does a home cost in St. Marys?

Homes in St. Marys sold for a median of $558,330 over the 12 months to September 2026, across 103 closed sales — half sold for more and half for less. That is 7.7% lower than the 12 months before it.

How long does it take to sell a home in St. Marys?

A home in St. Marys took a median of 60 days on the market over the 12 months to September 2026. Homes there closed at 97.2% of the asking price on average, with 7.8% selling over asking.

Compiled by HOMEH from sales reported closed in St. Marys on the Toronto Regional Real Estate Board MLS® System, through September 2026. Medians are taken over closed prices, not asking prices. Per-square-foot figures use the midpoint of the banded floor-area range MLS® carries, so they describe the group and not any one home. Not an appraisal or an opinion of value.

Questions, answered

Common questions about homes for sale in St. Marys

How many homes are for sale in St. Marys, ON right now?

62 homes are for sale in St. Marys on MLS® right now, and 2 were listed in the last 24 hours.

What is the average house price in St. Marys?

The median asking price of the 62 homes for sale in St. Marys is $640,950: half are listed above it and half below. By type, the median is $735,000 for detached houses, $359,900 for condo townhouses and $529,900 for vacant lots.

Houses for sale in St. Marys 

Where can I find cheap houses for sale in St. Marys?

49 homes in St. Marys are listed under $800K and 56 under $1M. The lowest asking price today is $174,999.

Homes under $800K in St. Marys 

Are there new homes for sale in St. Marys?

Yes. 15 of the 62 homes for sale in St. Marys are new construction.

New construction homes in St. Marys 

How do I get cash back when I buy a home in St. Marys?

Buy through HOMEH and you get a Cashback Rebate of 1.5% of the purchase price, paid at closing, subject to eligibility and your buyer agreement. On St. Marys’s median asking price of $640,950, that would be $9,614.

How the Cashback Rebate works 
Keep looking

More Houses to Buy in St. Marys

62 homes are for sale in St. Marys. Browse by neighbourhood or home type below — and get the industry's highest Cashback Rebate when you buy with HOMEH.