Guilford, IL demographics:
population, income, and more

Total population
135
1.5% year-over-year change
Median household income
$81,989/yr
1.8% year-over-year change
Housing units
101
2.0% year-over-year change

Guilford population

How many people live in Guilford

Guilford is home to 135 residents, according to the most recent Census data. Gender-wise, 50.4% of Guilford locals are male, and 50.4% are female.

Total population
135
1.5% year-over-year change
Gender ratio
Male
50.4%
68
Female
50.4%
68
Value Percent YoY change
Male 68 50.4% 3.0%
Female 68 50.4% 1.5%
A higher population often means more rental variety and livelier areas. The gender balance—how many men live here compared to women—can reveal a lot about the community and the lifestyles of its residents. Use this info to get a sense of the area's pace and personality.

Age demographics

The median age in Guilford is 59, with the population distributed as follows: about 13.3% are children under 15, then 5.9% are in the 15 to 24 age group. Adults between 25 and 44 make up 14.8% of the population, while another 26.7% fall into the 45 to 64 bracket. Finally, around 39.3% are 65 or older.

Median age
58.8
Age breakdown
Under 15
13.3%
15 to 24
5.9%
25 to 44
14.8%
45 to 64
26.7%
Over 65
39.3%
Value Percent YoY change
Under 15 18 13.3% -14.3%
15 to 24 8 5.9% 0.0%
25 to 44 20 14.8% -9.1%
45 to 64 36 26.7% 9.1%
Over 65 53 39.3% 6.0%
The age composition helps you get insight into who lives in the area. A younger population might mean a more active, fast-paced vibe, while an older one could suggest a quieter, slower lifestyle. If there's a balanced makeup, you’re likely to find a variety of services, housing types, and community spaces that cater to different life stages.

Racial makeup

In Guilford, 97.1% of the population are US-born citizens, while 2.2% have gained naturalized citizenship. At the same time, 0.7% of residents are non-citizens. As for race, 94.1% of locals are Caucasian, 0.7% are African American and 0.7% have Asian roots. There’s also a share of 4.4% that includes residents with two or more races.

Citizenship
U.S.-born citizens
97.1%
Non-U.S.-born citizens
2.2%
Non-citizens
0.7%
Value Percent YoY change
U.S.-born citizens 132 97.1% 1.5%
Non-U.S.-born citizens 3 2.2% 0.0%
Non-citizens 1 0.7% 0.0%
Racial breakdown
White
94.1%
Black or African American
0.7%
American Indian and Alaska Native
0%
Asian
0.7%
Native Hawaiian and other Pacific Islander
0%
Two or more races
4.4%
Other
0%
Value Percent
White 127 94.1%
Black or African American 1 0.7%
Asian 1 0.7%
Two or more races 6 4.4%

Households in Guilford

A peek inside Guilford households

Guilford has 69 households, with an average of 2 members in each. Of these, 62.3% are families, while the remaining 37.7% are made up of individuals living alone or with non-relatives, such as roommates.

Households stats

Total households
69
4.5% year-over-year change
Average people per household
2
Non-family households
26
Family households
43
Value Percent YoY change
Non-family households 26 37.7% 8.3%
Family households 43 62.3% 2.4%
The mix between family and non-family households gives a glimpse into daily life. A higher percentage of families might mean more parks and schools, while more non-family setups can mean flexible housing and diverse living styles. For renters, this can signal what kinds of homes are common and can help you figure out if the area matches your lifestyle.

Housing in Guilford

The housing landscape of Guilford

Guilford's housing consists of 101 units, with 73.5% being detached single-family homes ideal for those wanting space. Attached options, including duplexes and townhouses, make up 7.8% and offer a more compact, shared living style. Then there are the multifamily buildings in the area, and for those seeking flexibility, non-traditional options like mobile homes account for 1% of the housing landscape.

Housing units
101
2.0% year-over-year change
Housing types
Value Percent
1 unit, detached 75 73.5%
1 unit, attached 8 7.8%
2 units 4 3.9%
3 or 4 units 6 5.9%
5 to 9 units 5 4.9%
10 to 19 units 2 2%
50 or more units 1 1%
Mobile home 1 1%
Homes built since 2020
1
% year-over-year change

The age of buildings in Guilford

In Guilford, the median construction year is 1986. About 23.5% of homes were built before the 1940s, with another 2.9% going up by 1949. Most development happened in the second half of the 20th century. Then, 16.7% of homes were added from 2000 to 2009, 6.9% between 2010 and 2019, and 1% are part of the newest wave of development.

Construction year breakdown by decade
Value Percent YoY change
Built in 1939 or earlier 24 23.5% 4.3%
Built between 1940 and 1949 3 2.9% 0.0%
Built between 1950 and 1959 2 2% 0.0%
Built between 1960 and 1969 3 2.9% 0.0%
Built between 1970 and 1979 8 7.8% -11.1%
Built between 1980 and 1989 17 16.7% 0.0%
Built between 1990 and 1999 20 19.6% 0.0%
Built between 2000 and 2009 17 16.7% 0.0%
Built between 2010 and 2019 7 6.9% 16.7%
Built in 2020 or later 1 1% N/A
As a renter, knowing when homes were built helps you understand the potential condition and design of rental units. Newer builds may have more contemporary layouts, while older homes can offer character or larger lots, depending on the area.

Guilford occupancy rates

Out of the 69 occupied housing units in Guilford, 76.8% are owner-occupied, while 23.2% are lived in by tenants. Meanwhile, 31.7% of all homes on the local market sit vacant.

Occupied housing units
69
4.5% year-over-year change
Occupancy breakdown
Renter occupied
16
Owner occupied
53
Value Percent YoY
change
Renter occupied 16 23.2% 23.1%
Owner occupied 53 76.8% 0.0%
Unoccupied housing units
31.7%
Unoccupied housing units refer to homes that are currently without residents—whether they're waiting for renters or owners, used seasonally, or simply unclaimed. A higher share of empty homes may mean more housing availability, while a low number can reflect a tighter market with more competition. This, along with the renter-vs.-owner mix, helps paint a clearer picture of what types of housing and services are likely to be available in the area.

Guilford housing costs

Housing costs in Guilford come to a median of $1,079 per month, while tenants specifically pay a median gross rent of $831.

Median housing costs per month
$1,079/month
This figure sums up typical monthly housing costs for all households in the area. If you own, it includes mortgage payments in addition to property taxes, insurance and HOA fees. If you rent, it accounts for rent plus extras like utilities. It’s useful for seeing how local living expenses stack up compared to other places.
Median gross rent in Guilford
$831/month
Gross rent gives a more complete look at what renters actually pay, including not just base rent, but also utilities and fees. It’s a key number for evaluating rental affordability in your area of interest and understanding how it compares to nearby locations.

Education in Guilford

Guilford education at a glance

About 25.9% of the population in Guilford went to high school, while 20.7% pursued college studies. Another 11.2% earned an associate degree and 26.7% hold a bachelor’s. Meanwhile, 14.7% went even further, earning a master’s or doctorate.

Education level
Value Percent YoY change
No high school 1 0.9% N/A
High school diploma 30 25.9% 7.1%
College diploma 24 20.7% 4.3%
Associate degree 13 11.2% 0.0%
Bachelor's degree 31 26.7% 6.9%
Graduate degree 17 14.7% -10.5%
A community’s education mix can offer insights into the local economy and housing market. Higher levels of education often align with more job opportunities and stable incomes, which can increase demand for homes and influence both rent prices and rental availability.

Income in Guilford

How much people earn in Guilford

The average annual household income in Guilford was $109,341 in 2024, the most recent annual data available, according to the U.S. Census Bureau. This marked a +5.2% change from the previous year. At the same time, the median income stood at $81,989, reflecting a +1.8% shift over the same period.

Average household income in Guilford
$109,341/year
5.2% year-over-year change
Median household income in Guilford
$81,989/year
1.8% year-over-year change

Guilford income by age

In Guilford, households led by residents aged 25 to 44 — usually in the early to mid stages of their careers — have a median income of $78,452. Those with someone between 45 and 64 in charge, often well established professionally, earn $104,080 overall. Younger households, where the main provider is under 25 and just starting out, report a median income of $37,045, while those led by someone over 65, many of whom may be retired, have about $78,158 in earnings. Overall, 96.2% of the locals in this community live above the poverty line.

Income breakdown by age
Value YoY change
Under 25 $37,045 1.2%
25 - 44 $78,452 2.5%
45 - 64 $104,080 3.3%
Over 65 $78,158 -2.6%
Above poverty level
126
Below poverty level
5
Value Percent YoY
change
Above poverty level 126 96.2% 1.6%
Below poverty level 5 3.8% -16.7%

Employment in Guilford

Workforce and job types in Guilford

81% of the working population are employed in professional or administrative positions, while 19% are in hands-on or service-based jobs. Also, 15.9% run their own businesses, 58.7% are employed by private companies, and 14.3% work in the public sector.

Workforce demographics

White collar
51
Blue collar
12
Value Percent YoY change
White collar 51 81% -5.6%
Blue collar 12 19% 0.0%
Employer type
Self employees
15.9%
Private companies
58.7%
Governmental workers
14.3%
Not for profit companies
11.1%
Value Percent YoY change
Self employees 10 15.9% -23.1%
Private companies 37 58.7% 0.0%
Governmental workers 9 14.3% 0.0%
Not for profit companies 7 11.1% 0.0%

Transportation in Guilford

How people get around in Guilford

Commuting methods vary: 89.6% of residents travel by personal vehicle and 8.3% prefer to walk, while the remaining share relies on public transit or on two wheelers to get from A to B.

Means of transportation
Value Percent YoY change
Car 43 89.6% -8.5%
Bus or trolleybus 1 2.1% 0.0%
Walk 4 8.3% 0.0%
Understanding how locals get to work can help you plan your own routine. High car usage might mean you’ll need a vehicle, while strong public transit or walkability could save you the hassle. Commute times also play a big role in quality of life—shorter trips can give you more time for the things you enjoy.

What is the median and average household income in Guilford by zipcode?

Zipcode Population Number of households Median income Average income
61036 7,121 3,618 $81,989 $109,343

Explore more communities

FAQs about Guilford demographics 

What is the total population of Guilford?

Guilford has a total population of 135 residents, according to the latest release from the U.S. Census Bureau: the 2019-2023 American Community Survey (ACS) 5-year estimates. This figure changed by +1.5% compared to a year ago.

What is the gender ratio in Guilford?

The gender ratio in Guilford is as follows:
  • 50.4% males (68 residents)
  • 50.4% females (68 residents)

What is the median age in Guilford?

The median age in Guilford is 58.8.

What is the age distribution of the population in Guilford?

The age distribution in Guilford is as follows:
  • Under 15: 13.3% (18 residents)
  • Ages 15-24: 5.9% (8 residents)
  • Ages 25-44: 14.8% (20 residents)
  • Ages 45-64: 26.7% (36 residents)
  • Over 65: 39.3% (53 residents)

What is the racial and ethnic makeup of Guilford?

The racial and ethnic makeup of Guilford is as follows:
  • White: 94.1% (127 residents)
  • Black or African American: 0.7% (1 residents)
  • American Indian and Alaska Native: 0% (0 residents)
  • Asian: 0.7% (1 residents)
  • Native Hawaiian and Other Pacific Islander: 0% ( residents)
  • Two or More Races: 4.4% (6 residents)
  • Other: 0% (0 residents)

What percentage of the population in Guilford are U.S.-born citizens?

U.S.-born citizens represent 97.1% of the population in Guilford.

How many housing units are there in Guilford?

There are 101 housing units in Guilford, reflecting a +2.0% change compared to the previous year, according to the latest data from the U.S. Census Bureau.

How many households are in Guilford and what is the average household size?

Guilford has a total of 69 households, with an average of 2 people in each.

What is the median household income in Guilford?

Guilford has a median household income of $81,989, representing a +1.8% shift from the previous year, according to the U.S. Census Bureau.

What is the job market overview for Guilford?

Here’s a detailed breakdown of the local job market:

Job types:
  • White-collar workers: 81% (51 residents)
  • Blue-collar workers: 19% (12 residents)

Places of employment:
  • Self-employed: 15.9% (10 residents)
  • Private companies: 58.7% (37 residents)
  • Governmental workers: 14.3% (9 residents)
  • Not-for-profit companies: 11.1% (7 residents)

Data source & methodology

The demographic data on this page was sourced from the latest U.S. Census Bureau release—the 2019–2023 American Community Survey (ACS) 5-year estimates.

The information, issued annually, is compiled and published by the Point2Homes Research Team as soon as new data becomes available.

No representation, guarantee, or warranty is made concerning the accuracy or completeness of modified or aggregated information for particular areas.

Page last updated: September 2025