ZIP 99623 (Wasilla, AK) truck route planning & crash data
Plan safer truck routes around ZIP 99623: commercial truck and garbage truck crashes here and in Matanuska-Susitna Borough, dangerous roads, seasonality and route safety data for fleets.
Where fatal truck crashes happened
Risk scorecard
Key findings
Snapshot
Crashes by month
Garbage trucks vs all trucks
1 of 52 truck crashes since 2015.
Deadliest roads
How Matanuska-Susitna Borough compares with Alaska
Matanuska-Susitna Borough against Alaska and the US, 2015–2025 (years with complete crash reporting). Per-resident rates make big and small places comparable.
Where Matanuska-Susitna Borough stands out
Full comparison
| Measure (2015–2025) | Matanuska-Susitna Borough | Alaska | United States | vs state |
|---|---|---|---|---|
| Crashes per 100k residents / yr | 4.8 | 5.7 | 49.7 | 16% below the state |
| Deaths per 100 crashes | 25.5 | 11.6 | 3.4 | 2.2× the state |
| Injuries per crash | 0.63 | 0.44 | 0.49 | 1.4× the state |
| Garbage-truck share | 2.0% | 2.9% | 2.3% | 33% below the state |
| On snow, slush or ice | 37.2% | 50.3% | 6.2% | 26% below the state |
| Morning rush (6–10 am) | 21.6% | 20.4% | 23.7% | same |
| In rain, sleet or snow | 25.5% | 20.9% | 13.8% | 1.2× the state |
| Winter months (Nov–Mar) | 49.0% | 54.5% | 41.9% | 10% below the state |
| After dark | 39.2% | 36.0% | 24.8% | 1.1× the state |
Matanuska-Susitna Borough has lower values than Alaska for crashes per 100k residents / yr, garbage-truck share and on snow, slush or ice. Where it is higher: deaths per 100 crashes, injuries per crash and in rain, sleet or snow.
The headline for Matanuska-Susitna Borough: January the month with the most truck crashes: 19.2% of the year's total.
Overview
Since 2015, 52 crashes involving commercial trucks have been reported in Matanuska-Susitna Borough. They injured 33 people and killed 14.
In complete reporting years that works out to about one truck crash every 64 days.
When crashes happen
The worst month is January with 19.2% of truck crashes; the quietest is June at 1.9%.
The five winter months (November to March) hold 49.0% of truck crashes, against 54.5% across Alaska.
More truck crashes happen at 1–2 pm than at any other hour (9.6%).
Road surface: 37.2% of truck crashes were on snow, slush or ice (Alaska: 50.3%).
Where crashes happen
Since 2015, fatal crashes with a large truck within 10 miles of ZIP 99623 happened on Point Mackenzie Rd (1); no road leads clearly.
Garbage & waste trucks
Garbage and refuse trucks were involved in 1 crash, 1.9% of the total, against 2.9% across Alaska.
Route planning tips for ZIP 99623 fleets
- Build extra time into January routes: it has the most truck crashes here.
- Use the free Route Planner to score your route and spot low bridges before drivers head out.
About the data
Crash counts come from the FMCSA crash file (police-reported crashes involving trucks over 10,000 lb); fatal-crash locations come from NHTSA FARS. Text on this page states only what these numbers show.
Reporting to FMCSA was incomplete in 2020 and 2021; rates and comparisons skip those years.
Truck crashes by year: all trucks vs garbage trucks
Seasonality: when trucks crash in Matanuska-Susitna Borough
By hour of day
Most dangerous roads for trucks
| Road | Fatal truck crashes since 2015 (within 10 miles) |
|---|---|
| Point Mackenzie Rd | 1 |
Roads named most in all truck crash reports
| Road | Truck crashes since 2015 (Matanuska-Susitna Borough) |
|---|---|
| Mp 133 Parks Highway | 2 |
| Big Lake Rd And Parks Hwy | 1 |
| Big Lake Rd At Intersection With Birch Lake Drive | 1 |
| E Parks Hwy, Wasilla, Ak | 1 |
| Glenn Highway And Cienna Avenue | 1 |
| Glenn Hihgway And Pinochle Lane | 1 |
| Glenn Hwy & Arctic Ave | 1 |
| Glenn Hwy 111 Ft S Of Mp 31 | 1 |
ZIP 99623 at a glance
| Population | 23,424 |
| Density | 35 per sq mi |
| Median household income | $88,799 |
| Median home value | $316,416 |
| Home ownership | 82% |
Waste facilities and haulers nearby
Historical data: truck crashes in Matanuska-Susitna Borough since the 1990s
Combines the FMCSA crash file (all reported truck crashes, real coverage from about 1990) with NHTSA FARS (fatal crashes involving a large truck, 1982–2024).
| Decade | Truck crashes / yr | Change | Fatal crashes / yr (FARS) |
|---|---|---|---|
| 1990s | 2 | — | 1.1 |
| 2000s | 9 | +420% | 0.9 |
| 2010s | 11 | +18% | 1.5 |
| 2020s | 2 | -81% | 2.0 |
From the 1990s to the 2020s, yearly reported truck crashes went from 2 to 2. Some of the change may reflect how crashes were reported. NHTSA counts 2.8 fatal large-truck crashes a year in 2016–19 and 2.0 a year in 2020–24.
Nearby ZIP codes
Questions fleets ask about ZIP 99623
How many truck accidents are there in ZIP 99623?
Matanuska-Susitna Borough has had 52 reported truck crashes since 2015, injuring 33 people and killing 14.
When do most truck crashes happen in ZIP 99623?
Truck crashes in Matanuska-Susitna Borough peak in January, with 19.2% of the year's crashes.
How many garbage truck accidents happen in ZIP 99623?
Garbage trucks were involved in 1 reported crash in Matanuska-Susitna Borough since 2015 (1.9% of truck crashes).
How does ZIP 99623 compare with Alaska for truck crashes?
Per 100,000 residents, Matanuska-Susitna Borough has 4.8 truck crashes a year; Alaska has 5.7.
What is the best way to plan truck routes in ZIP 99623?
Paste your stops into the free CurbWaste Route Planner: it scores your route against fatal-crash locations, suggests safer alternatives and flags low bridges.
Crash reporting to FMCSA was incomplete in 2020 and 2021; those years are greyed out and left out of rates. 2026 is a partial year. Updated October 2026.