Lake Ronkonkoma, NY demographics:
population, income, and more

Total population
18,221
-0.4% year-over-year change
Median household income
$101,633/yr
-0.9% year-over-year change
Housing units
7,104
0.6% year-over-year change

Lake Ronkonkoma population

How many people live in Lake Ronkonkoma

Lake Ronkonkoma is home to 18,221 residents, according to the most recent Census data. Gender-wise, 48.1% of Lake Ronkonkoma locals are male, and 51.9% are female.

Total population
18,221
-0.4% year-over-year change
Gender ratio
Male
48.1%
8,764
Female
51.9%
9,457
Value Percent YoY change
Male 8,764 48.1% -1.5%
Female 9,457 51.9% 0.7%
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 Lake Ronkonkoma is 43, with the population distributed as follows: about 16.5% are children under 15, then 11.1% are in the 15 to 24 age group. Adults between 25 and 44 make up 25.1% of the population, while another 28.7% fall into the 45 to 64 bracket. Finally, around 18.5% are 65 or older.

Median age
42.6
Age breakdown
Under 15
16.5%
15 to 24
11.1%
25 to 44
25.1%
45 to 64
28.7%
Over 65
18.5%
Value Percent YoY change
Under 15 3,009 16.5% -4.0%
15 to 24 2,029 11.1% 15.9%
25 to 44 4,573 25.1% -1.9%
45 to 64 5,232 28.7% -3.8%
Over 65 3,378 18.5% 2.2%
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 Lake Ronkonkoma, 86.2% of the population are US-born citizens, while 10.6% have gained naturalized citizenship. At the same time, 3.2% of residents are non-citizens. As for race, 75.2% of locals are Caucasian, 3.8% are African American and 9% have Asian roots. There’s also a share of 10.1% that includes residents with two or more races.

Citizenship
U.S.-born citizens
86.2%
Non-U.S.-born citizens
10.6%
Non-citizens
3.2%
Value Percent YoY change
U.S.-born citizens 15,705 86.2% -0.4%
Non-U.S.-born citizens 1,935 10.6% 2.7%
Non-citizens 581 3.2% -9.2%
Racial breakdown
White
75.2%
Black or African American
3.8%
American Indian and Alaska Native
0.5%
Asian
9%
Native Hawaiian and other Pacific Islander
0%
Two or more races
10.1%
Other
1.4%
Value Percent
White 13,705 75.2%
Black or African American 690 3.8%
American Indian and Alaska Native 89 0.5%
Asian 1,647 9%
Two or more races 1,835 10.1%
Other 255 1.4%

Households in Lake Ronkonkoma

A peek inside Lake Ronkonkoma households

Lake Ronkonkoma has 6,704 households, with an average of 3 members in each. Of these, 62% are families, while the remaining 38% are made up of individuals living alone or with non-relatives, such as roommates.

Households stats

Total households
6,704
1.6% year-over-year change
Average people per household
3
Non-family households
2,545
Family households
4,159
Value Percent YoY change
Non-family households 2,545 38% 5.7%
Family households 4,159 62% -0.7%
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 Lake Ronkonkoma

The housing landscape of Lake Ronkonkoma

Lake Ronkonkoma's housing consists of 7,104 units, with 77.2% being detached single-family homes ideal for those wanting space. Attached options, including duplexes and townhouses, make up 4% 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 0.1% of the housing landscape.

Housing units
7,104
0.6% year-over-year change
Housing types
Value Percent
1 unit, detached 5,487 77.2%
1 unit, attached 285 4%
2 units 115 1.6%
3 or 4 units 105 1.5%
5 to 9 units 214 3%
10 to 19 units 253 3.6%
20 to 49 units 112 1.6%
50 or more units 525 7.4%
Mobile home 8 0.1%
Homes built since 2020
45
% year-over-year change

The age of buildings in Lake Ronkonkoma

In Lake Ronkonkoma, the median construction year is 1970. About 6.9% of homes were built before the 1940s, with another 7% going up by 1949. Most development happened in the second half of the 20th century. Then, 5.2% of homes were added from 2000 to 2009, 8.2% between 2010 and 2019, and 0.6% are part of the newest wave of development.

Construction year breakdown by decade
Value Percent YoY change
Built in 1939 or earlier 491 6.9% 10.3%
Built between 1940 and 1949 495 7% -11.6%
Built between 1950 and 1959 1,281 18% -11.8%
Built between 1960 and 1969 1,205 17% 2.4%
Built between 1970 and 1979 1,829 25.8% 2.1%
Built between 1980 and 1989 432 6.1% -8.9%
Built between 1990 and 1999 381 5.4% 10.4%
Built between 2000 and 2009 366 5.2% 10.2%
Built between 2010 and 2019 579 8.2% 19.1%
Built in 2020 or later 45 0.6% 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.

Lake Ronkonkoma occupancy rates

Out of the 6,704 occupied housing units in Lake Ronkonkoma, 69.6% are owner-occupied, while 30.4% are lived in by tenants. Meanwhile, 5.6% of all homes on the local market sit vacant.

Occupied housing units
6,704
1.6% year-over-year change
Occupancy breakdown
Renter occupied
2,035
Owner occupied
4,669
Value Percent YoY
change
Renter occupied 2,035 30.4% 3.7%
Owner occupied 4,669 69.6% 0.8%
Unoccupied housing units
5.6%
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.

Lake Ronkonkoma housing costs

Housing costs in Lake Ronkonkoma come to a median of $2,430 per month, while tenants specifically pay a median gross rent of $2,170.

Median housing costs per month
$2,430/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 Lake Ronkonkoma
$2,170/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 Lake Ronkonkoma

Lake Ronkonkoma education at a glance

About 38.6% of the population in Lake Ronkonkoma went to high school, while 19.3% pursued college studies. Another 8% earned an associate degree and 18.2% hold a bachelor’s. Meanwhile, 13.6% went even further, earning a master’s or doctorate.

Education level
Value Percent YoY change
No high school 351 2.4% -16.4%
High school diploma 5,647 38.6% 0.4%
College diploma 2,827 19.3% -5.1%
Associate degree 1,170 8% 2.7%
Bachelor's degree 2,661 18.2% 0.9%
Graduate degree 1,987 13.6% 12.3%
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 Lake Ronkonkoma

How much people earn in Lake Ronkonkoma

The average annual household income in Lake Ronkonkoma was $128,678 in 2024, the most recent annual data available, according to the U.S. Census Bureau. This marked a +0.3% change from the previous year. At the same time, the median income stood at $101,633, reflecting a -1% shift over the same period.

Average household income in Lake Ronkonkoma
$128,678/year
0.3% year-over-year change
Median household income in Lake Ronkonkoma
$101,633/year
-0.9% year-over-year change

Lake Ronkonkoma income by age

In Lake Ronkonkoma, households led by residents aged 25 to 44 — usually in the early to mid stages of their careers — have a median income of $137,670. Those with someone between 45 and 64 in charge, often well established professionally, earn $124,395 overall. Overall, 92.1% of the locals in this community live above the poverty line.

Income breakdown by age
Value YoY change
25 - 44 $137,670 26.6%
45 - 64 $124,395 -7.5%
Over 65 $73,341 3.2%
Above poverty level
16,477
Below poverty level
1,412
Value Percent YoY
change
Above poverty level 16,477 92.1% 0.1%
Below poverty level 1,412 7.9% -8.8%

Average renter income in Lake Ronkonkoma

To get a better sense of what renters earn on average in Lake Ronkonkoma, their median household income was $69,093 according to 2022 Census data. In addition, the rent-to-income ratio in the area, at 37.7%, shows what portion of their earnings goes toward housing expenses.

Renter median household income
$69,093
Rent-to-income ratio
37.7%
Understanding the rent-to-income ratio can help renters gauge if local housing costs align with their earnings. A ratio under 30% usually signals affordability, while exceeding this mark means rent is taking a larger-than-recommended bite out of income. That could make it harder for you to cover other costs like transportation, healthcare, or child care.

Employment in Lake Ronkonkoma

Workforce and job types in Lake Ronkonkoma

The job market in Lake Ronkonkoma is powered by 9,070 working residents, spread across a range of industries and roles. 85.2% of the working population are employed in professional or administrative positions, while 14.8% are in hands-on or service-based jobs. Also, 7.8% run their own businesses, 68.3% are employed by private companies, and 18.6% work in the public sector.

Workforce demographics

Working population
9,070
-0.6% year-over-year change
White collar
7,726
Blue collar
1,344
Value Percent YoY change
White collar 7,726 85.2% 1.3%
Blue collar 1,344 14.8% -10.4%
Employer type
Self employees
7.8%
Private companies
68.3%
Governmental workers
18.6%
Not for profit companies
5.2%
Value Percent YoY change
Self employees 706 7.8% -7.5%
Private companies 6,197 68.3% 0.4%
Governmental workers 1,692 18.6% 5.3%
Not for profit companies 475 5.2% -18.1%
Unemployment rate
6.2%
-9.2% year-over-year change

Available workforce

The unemployment rate in Lake Ronkonkoma stands at 6.2%, representing the share of the workforce currently without a job and actively looking for one.

For renters, the unemployment rate helps paint a picture of job security and financial stability in the area. Rates around 4% to 5% are considered typical. A lower-than-average rate might suggest strong job prospects and a thriving local economy, while a higher rate could hint at fewer opportunities—both useful to consider when planning a move.

Transportation in Lake Ronkonkoma

How people get around in Lake Ronkonkoma

Commuting methods vary: 83.7% of residents travel by personal vehicle and 1.3% 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 7,273 83.7% -1.1%
Subway or elevated 20 0.2% N/A
Railroad 303 3.5% -4.4%
Bicycle 2 0% N/A
Walk 115 1.3% 25.0%
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.

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FAQs about Lake Ronkonkoma demographics 

What is the total population of Lake Ronkonkoma?

Lake Ronkonkoma has a total population of 18,221 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 -0.4% compared to a year ago.

What is the gender ratio in Lake Ronkonkoma?

The gender ratio in Lake Ronkonkoma is as follows:
  • 48.1% males (8,764 residents)
  • 51.9% females (9,457 residents)

What is the median age in Lake Ronkonkoma?

The median age in Lake Ronkonkoma is 42.6.

What is the age distribution of the population in Lake Ronkonkoma?

The age distribution in Lake Ronkonkoma is as follows:
  • Under 15: 16.5% (3,009 residents)
  • Ages 15-24: 11.1% (2,029 residents)
  • Ages 25-44: 25.1% (4,573 residents)
  • Ages 45-64: 28.7% (5,232 residents)
  • Over 65: 18.5% (3,378 residents)

What is the racial and ethnic makeup of Lake Ronkonkoma?

The racial and ethnic makeup of Lake Ronkonkoma is as follows:
  • White: 75.2% (13,705 residents)
  • Black or African American: 3.8% (690 residents)
  • American Indian and Alaska Native: 0.5% (89 residents)
  • Asian: 9% (1,647 residents)
  • Native Hawaiian and Other Pacific Islander: 0% (0 residents)
  • Two or More Races: 10.1% (1,835 residents)
  • Other: 1.4% (255 residents)

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

U.S.-born citizens represent 86.2% of the population in Lake Ronkonkoma.

How many housing units are there in Lake Ronkonkoma?

There are 7,104 housing units in Lake Ronkonkoma, reflecting a +0.6% change compared to the previous year, according to the latest data from the U.S. Census Bureau.

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

Lake Ronkonkoma has a total of 6,704 households, with an average of 3 people in each.

What is the median household income in Lake Ronkonkoma?

Lake Ronkonkoma has a median household income of $101,633, representing a -0.9% shift from the previous year, according to the U.S. Census Bureau.

What is the employment rate and job market overview for Lake Ronkonkoma?

The employment rate is 93.8% in Lake Ronkonkoma, with a workforce of 9,070 residents. Here’s a detailed breakdown of the local job market:

Job types:
  • White-collar workers: 85.2% (7,726 residents)
  • Blue-collar workers: 14.8% (1,344 residents)

Places of employment:
  • Self-employed: 7.8% (706 residents)
  • Private companies: 68.3% (6,197 residents)
  • Governmental workers: 18.6% (1,692 residents)
  • Not-for-profit companies: 5.2% (475 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