Counties / Illinois / LaSalle County

LaSalle County, IL

FIPS 17099 · population 108,714 · outside every metro area

$195k
Zillow home value · 2026-06
The numbers

What this county costs and earns

Everything here joins on the county FIPS code, so each figure comes from the agency that publishes it with no name matching in between.

Zillow home value
$195k
▲ 7.0% year over year
Zillow ZHVI · direct
Median asking rent
$1,282
▲ 7.3% year over year
Zillow ZORI · direct
Gross yield
7.9%
annual rent ÷ price, before costs
derived: rent × 12 ÷ price ✓
HUD 2-bed standard
$1,079
market rent is 1.19x the standard
HUD Fair Market Rent · direct
Independent price check

Do two methods point the same way?

Zillow estimates a current home value. FHFA tracks repeat mortgage transactions. Their growth rates should be read side by side, not averaged.

Both annual signals move in the same direction
FHFA five-year cumulative+51.8%not annualized · through 2025
0%ZILLOW ZHVI2026-06+7.0%FHFA HPI2025+8.1%
Annual changes use different methods and may use different periods. The comparison checks direction and magnitude; it does not create a blended estimate. Zillow county ZHVI pulled 2026-07-26; FHFA annual county HPI pulled 2026-07-28.
Owner-reported value$162k
Surveyed gross rent$928
Rent burden 30%+43.1%
Median year built1963
Housing composition

Who occupies the stock—and what it is

ACS 2024 5-year
9.0%vacant
49,843estimated housing units
Occupied tenure25.6% renter
owner 74.4%renter 25.6%
Structure mix81.8% single-family
Single-family 81.8%20+ units 2.5%Mobile home 4.2%Other 11.5%
ACS estimates describe the standing housing stock and occupied tenure. They do not measure current listings, transaction prices or asking rents.

Survey source: Census ACS 5-year — county housing value, tenure and stock · ACS 2024 5-year · pulled 2026-07-30. These values describe different housing universes and are not combined into gross yield.

Annual average covered jobs38,719▼ 1.3% from the prior annual release
Covered establishments2,434annual average reporting locations
Average weekly wage$1,172▲ 4.1% from the prior annual release
Largest private supersectorTrade, transportation, and utilities32.2% of disclosed private covered jobs
Local labor base

Jobs, pay and private-sector concentration

2025
0%COVERED JOBS−1.3%WEEKLY WAGE+4.1%Trade, transportation, and utilities32.2%
Annual QCEW counts cover jobs located at reporting establishments. The industry share uses disclosed private covered employment; it is not a resident-employment measure or a forecast.

Workplace source: BLS QCEW — county employment and wages · annual county employment and wages 2025 vs 2024 · pulled 2026-07-31. QCEW counts covered jobs located in the county, not employed residents or the metro score’s CES/LAUS series.

County brief

What the local evidence says

01Decision frame

LaSalle County’s tension is clear: a $194,994 median home value and 7.89% gross yield support income underwriting, but demand and labor signals do not validate durable growth. Zillow’s 2026-06 observation shows price growth of 7.02% and rent growth of 7.27%. FHFA’s separate 2025 observation shows repeat-transaction appreciation of 8.10%. The methods and vintages align directionally, not as one growth rate. Income-focused buyers should investigate; appreciation-dependent buyers should be cautious.

02Housing economics

Measured market rent is $1,282 per month; the supplied yield is gross, before taxes, insurance, maintenance, vacancy, management, financing, or utilities. HUD’s two-bedroom FMR is $1,079 per month, a payment standard rather than an asking-rent estimate. Market rent is 118.80% of that standard, but this does not establish affordability or collection. The 2.11% effective property-tax rate and $3,418 median annual tax are meaningful carrying-cost checks. Missing property-level expenses and tax bills prevent a net-yield, cash-flow, or purchase-price conclusion.

03Demand & competition

Realtor.com’s MLS evidence shows visible supply and marketing friction, not closed-sale demand: active listings increased, and price reductions were present. Days on market and pending activity add context but do not prove buyer depth. Tax-return migration was negative at -45; average AGI was lower for in-movers than out-movers, with a -$4,087 gap. Investor mortgages were 10.12% of purchases, material but not dominant. Test seller flexibility and tenant demand rather than assume investor competition or exit liquidity.

04Risk & next checks

Risk limits matter because inland flood is the dominant hazard, while modeled annual climate loss is 0.12%; that ratio is not a property-level insurance estimate. QCEW covered employment fell while average weekly wages rose. QCEW measures county workplace jobs, not resident employment or unemployment; Trade, transportation, and utilities is the largest disclosed private supersector, not the whole economy. Obtain closed-sale comparables, site-specific flood maps and insurance terms, vacancy and expense history, tax assessment, and tenant-payment evidence. Without them, a durable gross yield cannot be separated from property-specific or demand-sensitive results.

Cities & communities

Where people live within LaSalle County

Census-recognized incorporated places and CDPs that intersect this county. The list does not pretend to include every neighborhood or informal community.

Population scale

Largest Census places

ACS 2024 5-year
Ottawa city18.4KStreator city*12.3KPeru city*9.8KLaSalle city9.5KMendota city7KLake Holiday CDP5.6KMarseilles city4.3KOglesby city3.6K
Bars use total place population, not a county-share estimate. An asterisk marks a place that crosses a county line.
Official directory

33 Census places

Population
  1. 01
    Ottawa cityIncorporated place
    18,447
  2. 02
    Streator cityIncorporated place · spans 2 counties
    12,330
  3. 03
    Peru cityIncorporated place · spans 2 counties
    9,775
  4. 04
    LaSalle cityIncorporated place
    9,498
  5. 05
    Mendota cityIncorporated place
    6,994
  6. 06
    Lake Holiday CDPCensus-designated place
    5,641
  7. 07
    Marseilles cityIncorporated place
    4,279
  8. 08
    Oglesby cityIncorporated place
    3,570
  9. 09
    Sheridan villageIncorporated place
    2,519
  10. 10
    Seneca villageIncorporated place · spans 2 counties
    2,450
  11. 11
    Earlville cityIncorporated place
    1,942
  12. 12
    Somonauk villageIncorporated place · spans 2 counties
    1,569
Show 21 more places
  1. 13
    North Utica villageIncorporated place
    1,282
  2. 14
    Leland villageIncorporated place
    1,065
  3. 15
    Wenona cityIncorporated place · spans 2 counties
    999
  4. 16
    Dalzell villageIncorporated place · spans 2 counties
    736
  5. 17
    Millington villageIncorporated place · spans 2 counties
    729
  6. 18
    Tonica villageIncorporated place
    717
  7. 19
    Naplate villageIncorporated place
    589
  8. 20
    Grand Ridge villageIncorporated place
    584
  9. 21
    Lostant villageIncorporated place
    407
  10. 22
    Kangley villageIncorporated place
    302
  11. 23
    Troy Grove villageIncorporated place
    300
  12. 24
    Dayton CDPCensus-designated place
    271
  13. 25
    Cedar Point villageIncorporated place
    262
  14. 26
    Ransom villageIncorporated place
    245
  15. 27
    Rutland villageIncorporated place
    195
  16. 28
    Serena CDPCensus-designated place
    182
  17. 29
    Dana villageIncorporated place
    152
  18. 30
    Leonore villageIncorporated place
    97
  19. 31
    Triumph CDPCensus-designated place
    83
  20. 32
    Harding CDPCensus-designated place
    18
  21. 33
    Wedron CDPCensus-designated place
    0

Population is the total place-wide ACS estimate, not an allocated county share. A place crossing a county line is labelled explicitly. Source: Census ACS 5-year — cities and communities · ACS 2024 5-year · pulled 2026-07-30.

Risk, demand and competition

The three things a price does not tell you

01
Risk & carrying costFEMA NRI + Census ACS
Dominant hazardinland flooding

0.122% of building value expected lost per year

Effective property tax2.11%

$3,418 median annual bill

02
DemandIRS SOI household flows
Net migration-45

2,277 in · 2,322 out

Arriving vs leaving income−$4,087

$55,657 arriving · $59,744 leaving

03
CompetitionHMDA financed purchases
Purchases by investors10.1%

108 of 1,067 mortgages

investorother financed
Current listing pressure

What sellers and visible supply are doing

Realtor.com® Economic Research · county inventory 2026-06 · pulled 2026-07-28
Active listings227▲ 11.0% year over year
Median days on market40▲ 1.9% year over year
Listings price-reduced16.3%seller-concession signal
Median listing pricen/a▲ 3.0% year over year

Listing price is an asking price, not a closed sale. Quality-flagged county rows are withheld instead of displayed.

Bear case

What can break the county thesis

  1. Net returns may be lower because the record lacks property-level operating, financing, insurance, vacancy, and maintenance costs.
  2. Inland-flood exposure may create site-specific insurance, mitigation, or damage burdens not captured by the modeled county ratio.
  3. Weak migration, declining covered employment, and MLS evidence that is not closed-sale demand may undermine tenant demand or resale liquidity.
Underwriting questions

Before pricing a property

What rental benchmark is actually measured?

The record publishes a median monthly asking rent. HUD’s two-bedroom FMR is a payment standard, not market rent.

Can the supplied gross yield be treated as net cash flow?

No. Property-level expense detail, including insurance, maintenance, vacancy, management, utilities, financing, and tax bills, is not supplied.

What evidence limits demand underwriting?

Tax-return migration was negative, covered employment declined, and investor mortgages were a minority of total purchases.