Loading homes in St. Marys…

No listings match these filters in this area.

Try zooming out or widening your filters.

City in Ontario

Detached houses for sale in St. Marys

Name: HOMEH Market Pulse — St. Marys closed sales and leases
Creator: HOMEH
License: https://homeh.com/terms-of-use

There are 33 detached houses for sale in St. Marys today, with a median asking price of $735,000 (+15% vs. all homes in St. Marys). 13 are bungalows.

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

Bungalows & Detached Homes in St. Marys

Day to dayLivability

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

$639,900

11% below Ontario

In St. Marys

$639,900

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

Median $639,900

Houses 51 · Condos 11

For rent

Median $1,750

Condos 1 · Houses 1

Recently sold

Recently leased

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.

Parks

Playgrounds

Transit stations

Grocery stores

Restaurants

Cafés

Gyms

Libraries

Pharmacies

Counted across all 12.9 km² of St. Marys. From OpenStreetMap, as of 2026-10-26.

The schoolsWhich schools, and how they rate

7.2/10

Average rating of the 3 rated schools in this area

Elementary

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 Detached houses only Through September 2026 Moderate sales history

What Houses in St. Marys Sell For

At least 45 detached houses changed hands in St. Marys over the 12 months to September 2026. Half sold above $637,944 and half below, 2.3% lower than the 12 months before. A typical detached house found its buyer in 77 days — 43 days slower than a year ago.

6 of the last 12 months had at least 5 closed detached houses sales in St. Marys. Quieter months are left out rather than shown as a median over a handful of homes, so the totals here are a floor.

Median sold price: $638K; -2.3% year over year
Days to sell: 77; 43 days slower
Sales closed: 45; last 12 months
Per square foot: $443; from 45 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 detached house here differs from the next.

$1.00M$798K$596K$393K

May ’24Apr ’25Mar ’26Sep ’26

Median sold price Middle half of sales

What buyers actually paid

$966,800

on a $1,000,000 asking price — under ask by $33,200

−10%Asking price+10%

Of the asking price: 96.7%
Sold over asking: 6.7%

From 45 sales that closed here in the last 12 months.

How fast it moves

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

May 2024Sep 2026

Terracotta marks the last 12 months.

Every month behind these charts — St. Marys, sales

Monthly closed sales in St. Marys
Month	Closed	Median	Middle half	Days	% of ask
Sep 2026	5	$637,500	$551K – $692K	77	97.2%
Aug 2026	6	$777,500	$730K – $788K	37	97.3%
Jun 2026	10	$595,000	$553K – $731K	38	97.0%
May 2026	12	$573,750	$463K – $735K	103	94.9%
Apr 2026	7	$635,000	$549K – $645K	146	97.4%
Mar 2026	5	$715,000	$710K – $755K	44	97.9%
Sep 2025	9	$820,000	$690K – $880K	36	98.5%
Aug 2025	8	$682,500	$503K – $791K	19	97.4%
Jul 2025	9	$655,000	$461K – $770K	33	98.4%
Jun 2025	7	$660,000	$522K – $769K	96	98.2%
May 2025	10	$608,507	$484K – $667K	19	99.7%
Apr 2025	6	$535,000	$478K – $635K	15	98.2%
Mar 2025	9	$560,000	$555K – $750K	33	96.7%
Oct 2024	11	$670,000	$610K – $697K	27	98.5%
Sep 2024	11	$840,000	$598K – $958K	69	97.8%
Aug 2024	16	$640,000	$555K – $875K	32	99.0%
May 2024	7	$500,000	$435K – $613K	83	97.3%

What people ask about St. Marys

How much does a detached house cost in St. Marys?

Detached houses in St. Marys sold for a median of $637,944 over the 12 months to September 2026, across at least 45 closed sales — half sold for more and half for less. That is 2.3% lower than the 12 months before it.

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

A detached house in St. Marys took a median of 77 days on the market over the 12 months to September 2026. Detached houses there closed at 96.7% of the asking price on average, with 6.7% 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 detached house. Not an appraisal or an opinion of value.

Keep looking

More Homes for Sale 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.